For the past few years, I’ve been involved with the Missouri Native Plant Society (MONPS). To this point, however, my involvement has been limited to attending the monthly meetings of the St Louis Chapter—unfortunately, now only via Zoom since the beginning of the pandemic. I hope that soon we can return to in-person meetings (or, even better, a hybrid of the two, which allows person-to-person interaction without excluding participation by those who cannot attend in-person), but one activity that has resumed live are their periodic, multi-day field trips. The Spring 2022 Field Trip, held this past weekend in southwestern Missouri, was my first chance to participate in one of these events, and I looked forward to seeing the remnant prairies, limestone, dolomite, and sandstones glades, and chert woodland that were all on tap while rubbing elbows with some of the state’s best botanists and naturalists—some old friends and others new acquaintances!
Day 1 – Schuette Prairie I wasn’t able to make it to the actual Day 1, so I left St. Louis early in the morning to meet the group at the first stop of the following day—Schuette Prairie in Polk Co. Named after my friend and former Cuivre River State Park naturalist, Bruce Schuette, this recently acquired limestone/dolomite prairie with a wet swale contains many plants more typical of glades such as Silphium terebinthinaceum (prairie dock), Echinacea paradoxa (yellow coneflower), and Rudbeckia missouriensis (Missouri coneflower). Of course, on this cold, overcast, early-April morning, it was far too early to see any of these highly charismatic plant species (although some of the more astute botanists were about to point them out by their barely emergent foliage, which was easy to find in the recently-burned northern half of the parcel). Abundantly in bloom, however, was the more subdued Erythronium mesochoreum (prairie fawn lily, midland fawnlily, prairie dogtooth violet). Distinguished from the similar E. albidum (white trout lily) that occurs abundantly further east by its narrower, folded, usually unmottled leaves, all but a few of which remained stubbornly closed against the stiff, cold wind.
Precious few other blooms were seen—I recall somebody mentioning they had seen Viola sororia (common violet), and I photographed this little clump of Fragaria virginica (wild strawberry) that will eventually provide food for one of the area’s many box turtles.
Speaking of box turtles, I found this completely naked, bleached carapace and at first hoped that it might have been from an ornate box turtle (Terrapene ornata)—limited in Missouri to western prairies and a species I have not yet seen. However, the presence of a midline ridge and its relatively more domed shape suggest it is from a three-toed box turtle (Terrapene carolina triunguis).
Many other carapaces were seen (though none in such good shape), and in fact bones of many types were easy to find in the burned portion of the prairie. This disarticulated skull from what appears to be a young calf (Bos taurus) was perhaps the most impressive bone find, but we did also find a dried skeleton of a smaller individual. Being the lone entomologist of the group, I just had to turn over the carcass and search for beetles and managed to capture a skin beetle (family Trogidae) and one other small unidentified beetle (but, unfortunately, no Necrobia rufipes [red-legged ham beetle]).
Rocky Barrens Conservation Area Later in the morning, the group caravaned to Rocky Barrens Conservation Area, a 281-acre area in Greene Co. featuring Mississippian limestone glades and site for the federally-endangered Physaria filiformis (Missouri bladder-pod). This plant, in the mustard family, is found only in four counties in southwest Missouri. The plants were readily found, but we were too early to see them in bloom—or anything else, for that matter. For me, however, the glade alone was still interesting, and I couldn’t help but take note of the similarities—and differences—between this limestone example and the dolomite glades south of St. Louis with which I am so much more familiar. Almost immediately, I noted the presence of Sideroxylon lanuginosum (gum bumelia), host for Plinthocoelium suaveolens (bumelia borer)—surely one of North America’s most beautiful longhorned beetles! I didn’t see any frass piles at the base of any of the trees, the presence of which would indicate larval activity, but I’m sure the beetle is here. It would be interesting to come back during the season and look for it. While I didn’t find any signs of the beetle, I couldn’t miss the bright orange-yellow gold-eye lichens (Teloschistes chrysophthalmus) colonizing it’s branches.
Another tree that caught my interest was Celtis tenuifolia (dwarf hackberry). I see these small, gnarly versions of the genus in glades and other xeric habitats, and they always catch my interest because of the diversity of interesting woodboring beetles associated with it. As I looked at the trees, I noticed one small tree in particular that was the perfect stage of dead—branches brittle but bark mostly still intact with a little bit of peeling on the trunk revealing woodboring beetle larval galleries underneath! There were only a few emergence holes present—strong evidence that the tree was still infested and worth bringing back to put in an emergence box to trap the emerging adult beetles. With luck, I’ll be pinning a series of Agrilus ferrisi next winter!
Corry Flatrocks Conservation Area After lunch at a nearby city park, the group caravaned to Corry Flatrocks Consevation Area in Dade Co.—site of another federally-endangered plant, Mononeuria minima (formerly Geocarpon minima) (tiny-Tim, earth fruit). The sandstone glades at this site are among the largest in the area and, thus, host a large population of the plant. By this time of day, the sun had been out for awhile and the day had warmed considerably, so we hoped to see other flowering plants as well. Among the first that we encountered while walking towards the glade proper was Ranunculus fascicularis (early buttercup), distinguished from other “large-flowered buttercups” by its canescent (grayish due to hairiness) leaves with long and narrow lobes, their tips bluntly pointed or rounded. The dry, gladey habitat also distinguishes the species from the similar R. hispidus (hairy buttercup), which flowers at the same time but prefers moister habitats.
On the glade proper, we quickly encountered tiny little saxifrages in bloom, which turned out to be Micranthes texana (Texas saxifrage), restricted in Missouri to this part of the state (and thus with a high CC value of 9) and distinguished from the more widespread M. virginiensis (early saxifrage) by its small, compact stature. These first individuals we encountered had especially reddish-tinged flowers.
As soon as we reached the more open part of the glade with large expanses Of exposed rock, the group dropped to their hands and knees to find the diminutive plants we were looking for.
The plants were not uncommon, even abundant, in shallow, sand-filled depressions in the rock. Nevertheless, careful observation was still required to see and recognize them. Fortunately, the plants were already in bloom, their tiny styles barely visible to the naked eye within the green, not-much-bigger, petalless flowers. Photographing these plants, and especially those in bloom, proved to be a task almost beyond the capabilities of the smart phones that most in the group were using (me included).
The glades stretched on for quite a distance, inviting further exploration. At the margins, white flowering trees were noticed, and moving closer they proved to be Amelanchier arborea (downy serviceberry, common serviceberry)—among the first we have seen open this spring. (I typically see the first blooms of these trees in the final days of March, at least around my home in east-central Missouri.) an even closer looked revealed tiny insects (also among the first insects I have seen active this spring) flying around and crawling about on the flowers. These proved to be parasitic hymenopterans—family ID is still pending, but I suspect they will prove to be a species in one of the many families of “microhymenopterans” that are egg parasitoids. I am not sure whether they were visiting the flowers as pollinators (which behavior I am not aware of) or in hopes of encountering other pollinators which could potentially serve as hosts—a subject with which I will need to follow up.
Near the back end of the glade, we encountered a few more Micranthes texana (Texas saxifrage), these having more typical white flowers in perfect peak bloom.
Also in that part of the glade we found a few scattered individuals of Selenia aurea (golden selenia). While not quite as conservative as M. texana (CC value = 6), it has a similar range in the U.S. and in Missouri is also restricted to a handful of counties in the southwestern part of the state. The plant is known to occur in large colonies (which I have seen at nearby Corry Branch Glade)—its brilliant yellow flowers forming a spectacular display.
To this point, the only insect I had seen besides the microhymenopterans was a skin beetle (family Trogidae), which I found when I kicked over some dried mammal scats. However, on the way back to the cars we finally encountered an insect large enough in size and striking enough in appearance to pique the interest of not just me but the group as a whole—a large caterpillar feeding on the foliage of Penstemon digitalis (smooth beard-tongue). It’s appearance—dark with longitudinal yellow stripes and blue spotting—immediately called to mind one of the tiger moths (formerly Arctiidae, now a subfamily in the Erebidae), specifically the genus Haploa (commonly called haploa moths). A little detective work on BugGuide comparing photos and recorded host plants narrowed the likely choice to H. confusa (confused haploa moth).
Day 2 – Lead Mines Conservation Area The final day of the MONPS Field Trip featured a morning trip to Lead Mine Conservation Area in Dallas Co. Of particular interest to the group were several parcels within the area designated as Niangua River Hills Natural Area and featuring a diversity of habitats including dolomite glades, chert woodlands, and calcareous wet meadows (fens). Most in the group visited the northern parcel to see the dolomite glades; however, a few of us—primarily from St. Louis and well-familiar with dolomite glades—opted to visit the smaller southern unit of the natural area to see the fen and riparian woodland we needs to pass through to get there. It was a much warmer morning than yesterday, though still chilly starting out, so blooms were sparse as we hiked the woodland trail searching for any hint of color. At one point, someone noticed a shrub a bit off the trail with large, reddish pink flowers—the color seeming a bit unexpected for the situation. Bushwhacking toward it, we realized it was Chaenomelesspeciosa (common flowering quince), a common, ornamental non-native plant that rarely—but obviously sometimes—escapes cultivation. While the group looked at the plant, I saw my first insect of the day—Paraulacizes irrorata (speckled sharpshooter), one of our largest and most recognizable leafhoppers, sitting head-down on the stem of a small sapling.
Among the first native blooms we saw was Ranunculus hispidus (hairy buttercup). Though similarly “large-flowered” as R. fascicularis (early buttercup), it differs by its sprawling growth habit, differently shaped-leaves, and preference for moist habitats. Buttercups are a favorite flower host for jewel beetles (family Buprestidae) in the genus Acmaeodera, and one species —A. tubulus—is among our earliest-emerging beetles in the spring, so I checked each buttercup flower that I saw hoping to see these little beetles signaling the beginning of insect activity for the season. Sadly, none were seen.
At last we reached the fen—a large open area on the toe-slopes of the adjacent hillside where water draining through the underlying strata emerged to the surface to maintain a continually wet environment. The fen here is special, as two species of Cyprepedium (lady’s slipper orchids) are know to occur in the fen (and in fact, all four of the state’s Cyprepedium spp. can be found with Lead Mine Conservation Area). At this early date, the orchids would not be anywhere close to blooming; however, the group looked for evidence of their presence, walking gingerly through the fen so as to avoid inadvertently stepping upon any emergent foliage. No putative clumps were found, but already in my mind I’m thinking a mid-May trip back to the fen might be warranted! Unlike the orchids, Castilleja coccinea (Indian paintbrush) was abundantly evident throughout the fen, with an occasional plant almost ready to burst forth their scarlet blooms. Senescent flower stems of composites, presumably Rudbeckia, were also seen throughout the glade, which, combined with the abundance of Castilleja, created the promise of a stunning early-summer display across the fen.
During our time in the fen, two species of butterflies were seen flitting about the herbaceous vegetation: tiny blue Celastrina ladon (spring azure), and one of the dustywing skippers in the genus Erynnis. The former were impossible to photograph due to their persistent flitting and skittish behavior, and the latter almost were as well. Only when I locked the focus on a preset 2x zoom and fired shots in rapid succession while moving the smartphone ever closer to the subject did I manage this one imperfect but passable photograph of the last one I tried. The genus Erynnis is diverse and notoriously difficult to identify, and my expertise with skippers and butterflies pales compared to my skills with beetles, so the ID will have to remain Erynnis sp. until a more authoritative opinion is offered. [Edit 4/6/22, 11:38 am: According to my lepidopterist friend Phillip Koenig, Erynnis horatius and E. juvenalis both fly in early spring, and they cannot be reliably separated from the dorsal side. Erynnis juvenalis has one or two dots on the ventral hind wing that E. horatius lacks and only flies in the early spring, while E. horatius can be seen through the summer. If only I could turn the picture over to see what it looks like on the ventral side!]
Returning through the riparian woodlands after visiting the fen, the day had warmed considerably, and numerous flowers not seen earlier were suddenly in full bloom. These included Erythronium mesochorium (prairie fawn lily midland fawnlily, prairie dogtooth violet)—the same species we saw yesterday so reluctantly in bloom at Schuette Prairie. Most were of the familiar form with unmottled leaves; however, we found one individual with notably mottled leaves that resembled those of E. albidum (white dogtooth violet) (1st photo). Nevertheless, the leaves were still narrower than that species and folded, and the plant was growing a mere 12” from another individual with no trace of mottling (2nd photo).
Claytonia virginca (spring beauty) was also blooming in abundance as we took the trail back. I am always amazed at the variability seen in the flowers of this species—from pure white to vividly pink-striped to pink at the tips. This especially vivid pink individual was about as pink as they come.
Sanguinaria canadensis (bloodroot) also was popping up regularly. We had seen isolated plants sitting the trailsides when we first part through—their flowers tightly folded in stubborn response to the chilly morning temperatures. By early afternoon, however, they were spread wide open as invitation to any of the flying insects that had surely also been awakened by the warmer temperatures of the afternoon. While most were seen as isolated individuals, a particularly idyllic clump captured our attention, almost begging “photograph me!”
With that, we rejoined the main group to recount the days experiences and cement new relationships before heading back towards our respective home areas.
Long Ridge Conservation Area On the way back home, I decided to check out this conservation area in Franklin Co., which I’ve never visited before. The afternoon had gotten quite warm, so I reasoned that maybe today would be the day when insects start coming out in abundance. I was right! As soon as I pulled into the parking lot, I saw a Prunus mexicana (Mexican plum) in full bloom, and walking up to it I immediately saw an abundance of bees and small beetles all over the flowers. The latter turned out to be Orsodacne atra (a leaf beetle) and Ischnomera ruficollis (rednecked false blister beetles).
Inside the woods along the Blue Trail, there were the usual suspects in bloom—Claytonia virginica (spring beauty), Cardamine concatenata (toothwort), Antennaria parlinii (Parlin’s pussytoes) and Ranunculus hispidus (hairy buttercups).
Eventually I happened upon an Amelanchier arborea (downy serviceberry) in full bloom. There were more O. atra and I. ruficollis on the flowers (though not so many as on the Mexican plum), along with a Mecaphesa sp. crab spider that had caught and was feeding on a male Andrena carlini (Carlin’s mining bee)*.
On the back third of the trail, I found two fallen branches under a Quercus shumardii (Shumard’s oak) that had been pruned by longhorned beetles—presumably Anelaphus villosus. At the end of the trail I found a third such branch of the same species of oak. All three will be placed in an emergence box, and hopefully the culprits will emerge as adults.
Despite the relatively long drive from St. Louis, a healthy group of 15 showed up for this past Monday’s WGNSS Botany Group outing at Hughes Mountain Natural Area; participation no doubt helped out by a spectacular forecast (sunny with highs in the 70s) and near-peak fall colors. Hughes Mountain is situated in the northern portion of the St. Francois Mountains. At its summit is Devil’s Honeycomb—a barren expanse of uniquely fractured Precambrian rhyolite formed by the gradual cooling of magma inside a volcano that was then exposed over 1.5 billion years of erosion. Devil’s Honeycomb is one of Missouri’s geologic wonders, and it’s rocks are among the oldest exposed rocks in all of North America.
Rocks are not the only items of interest here; the igneous substrate results in acidic conditions that affect the flora in equally interesting ways. This is most pronounced in the igneous “glades” (more properly called xeric igneous prairies) where the soils are too thin and conditions too dry to support the growth of trees, offering refugia for grasses and other herbaceous plants more typical of the western grasslands to persist. Surrounding the glades are dry and dry-mesic upland deciduous forests of oak and hickory featuring a rich shrub layer and open woodland-adapted herbaceous plants.
Beginning on the trail from the parking lot, John Oliver pointed out a stand of tall, now leafless sumacs which nearly everybody (including this author) assumed to be Rhus glabra (smooth sumac) due to their size. In fact, despite their size, they proved to be R. copallinum (winged sumac), with the ID confirmed by a few persisting leaves and their distinctive axial “wings.” John pointed out that an easy winter ID tip for this species is the fruiting structures, which nod distinctively after first frost (those of R. glabra do not).
Ascending the trail through the dry-mesic forest towards the first set of glades, we noted the brilliant colors of small Acer rubrum (red maple) saplings in the understory. When their leaves finally drop, they will be more difficult to distinguish from A. saccharum; however, their rounded rather than elongated buds will still allow differentiation.
Several of the oaks were examined, with most thinking they were largely Quercus shumardii (Shumard’s oak) and Q. velutina (black oak)—both similar to each other but the latter bearing larger, grayer, pubescent, quadrangular terminal buds. Approaching the glades, Q. marilandica (blackjack oak), Carya texana (black hickory), and Ulmus alata (winged elm) became more abundant, all three much preferring the drier conditions found around the glade margins. An interesting feature of the latter (in addition to the distinctive, corky ridges on the twigs), is the leaves, which are smaller than those of most other elms but tend to grow larger towards the terminus of the twig. They also tend to be much less asymmetrical at their base than other elms.
Very little was left in bloom, but the remnants of recent bloomers were still evident. Solidago petiolaris (downy goldenrod) and Symphyotrichum anomalum (many-rayed aster) were common along the trail and still recognizable, their showy flowers gone and replaced by developing seeds. Hieracium sp. prob. gronovii (beaked hawkweed) was found nestled among mosses perched on a rhyolite shelf, the flowers gone but the leaves still green and distinctively hairy. Hypericum gentianoides (pineweed) was found on the glades proper, most with their stems and leaves turning red but the occasional plant still green enough to allow crushing its stems and enjoying its orange-like fragrance. Bucking the trend, however, was a small patch of Solidago nemoralis (old-field goldenrod), it’s yellow flowers fresh and bright in defiance of the calendar’s call to senescence. A small jumping spider in the genus Phidippus took advantage of the lingering greenery, hiding among the leaves in hopes of finding equally persistent prey.
The benefits of management efforts by the Missouri Department of Conservation in the area’s forests were more evident than ever. Between the first set of glades and the main glades surrounding the summit, a rich shrub layer dominated by Rhus aromatica (fragrant sumac) stretched endlessly under an open woodland of oak and hickory, the latter turning the canopy bright yellow in vivid contrast to the orange and red shrub layer beneath. Such open woodlands were once common in pre-settlement Missouri but are now rare due to the elimination of fire in the landscape and its mediating impacts.
Entering the main glades, the group made their way up towards the summit and Devil’s Honeycomb, while Ted and Sharon stayed back to take a closer look at and photograph a robust colony of Cladonia cristellata (British soldiers) growing under Juniperus virginiana (eastern red-cedar). Lichens, of course, are unique in the world of vegetation in that they are a composite organism—a fusion between a fungus and another organism (usually a green alga or cyanobacterium) capable of producing food via photosynthesis. None of these groups of organisms are considered plants in the modern sense, and, in fact, fungi are more closely related to animals than they are to plants. Nevertheless, the convergence in appearance, habitat, and ecology of lichens with plants puts their study much more in the realm of botany than zoology.
The group arrived at the summit just in time to enjoy spectacular vistas under crystal blue skies with wisps of clouds and the balmiest temperatures one could possibly hope for in early November.
This is the 10th “Collecting Trip iReport”; this one covering 13 days of collecting in western Texas, southern New Mexico, and southeastern Arizona July 19–31, 2021. This trip was a “two-parter”—the first week with frequent field mate Jeff Huether (our seventh joint collecting trip) as we made our way from western Texas through southern New Mexico and into southeastern Arizona on our way to a memorial celebration for Jim Wappes at the home of Steve Lingafelter and Norm Woodley (for which I took the day off from collecting), and the second week visiting various locations in the “Sky Islands” of southeastern Arizona with several other entomologists.
Day 1 – Monahans State Park, Texas This was my first stop on the previous trip back in late April and early May, and what a difference a couple of months with good rains makes—dry as a bone then but bursting with a great variety of wildflowers now. Like last time we stopped at the Shin Oak Picnic Area first, and almost immediately Jeff got an Acmaeodera gibbula on living Prosopis glandulosa (mesquite). I started beating the trees and got a good series of that species along with a good series of an Actenodes sp. (prob. A. mendax). There were also some mesquites that had been killed (apparently by herbicide), and when I started beating them I got several more A. gibbula and one Paratyndaris sp. It went from blazing hot when we arrived to raining about an hour later, and for a while after the rain moved through it stayed cloudy and quite comfortable. Eventually we decided to look for another spot with more mesquite to beat.
We found an area closer to the entrance (Equestrian Area) with lots of mesquite and also sunflowers, which Jeff was interested in looking at to search for meloids (blister beetles). Before I even reached the first mesquite I saw an Acmaeodera sp. (maybe A. obtusa) sitting on the flower of Thelosperma megapotamicum (rayless greenthread) and later found another plus one A. immaculata. Off the mesquite I beat just one Actenodes sp. prob. mendax and a few treehoppers, while another and a Chrysobothris sp. got away (it was by now quite hot and they bolted!). I continued beating mesquite but just wasn’t seeing anything, so we decided to take a look at the area around the main dunes and another picnic area.
At the Pump Jack Picnic Area, we saw a lot of Thelosperma megapotamicum (rayless greenthread) in bloom and decided to check the flowers for Acmaeodera. We each got a nice series of what appear to be A. obtusa and A. immaculata. Also, I finally found a single Acmaeodera immaculata on the flower of Hymenoppapus flavescens (collegeflower), which I’d been looking at all day thinking it must be a good Acmaeodera flower host. On the way back to the vehicle, I scared up a cicada that had been singing on a nearby plant—I’d been hearing them all day but assumed they were grasshoppers or katydids. I listened for another and saw it perched on the stem of Mentzelia nuda (bractless blazingstar), and netted it—a fine male, smallish and with a very white venter. I wanted to find one more—catching another A. gibbula in flight, and saw one singing in a mesquite tree. This time I took some photos of it (working carefully not to alarm it) and then hand-caught it (later identified as Diceroprocta texana). A nice end to the visit.
After dinner, we returned to Shin Oak Picnic Area for night collecting. I setup my new Mercury-vapor (MV) station (first time using the gas-powered generator and tripod—slick setup) and my two ultraviolet (UV) stations. Jeff set out three prionic acid lures. Large numbers of Polyphylla monahanensis (which came mostly to the UV stations) and P.pottsorum (which came mostly to the MV station), but otherwise few beetles showed up and not a single longhorn. Other insects were also limited mostly to large numbers of ground-nesting bees and several big grasshoppers. No Prionus came to the lures—not surprising since we are in the tail end of the season for P. arenarius (April to July) and too early for P. spinipennis (mostly August). I’ve only gotten a few P. monahanensis and P. pottsorum before now, so it’s nice to have good series of each, but I would have preferred to collect some longhorns.
Day 2 – Toyahvale, Texas We’re on our way to the Davis Mountains, and along the way I decided to stop at the “Agrilus cochisei” spot we found (on a tip from Jason) back during the April trip. I swept the roadsides—not just the host plant (Artemisia occidentalis, western ragweed) but a variety of other plants in bloom but did not find any A. cochisei. I did collect a few meloids (which were on Solanum eleagnifolium) and Zygogramma leaf beetles but nothing else.
A bit further down the road from the last stop, we noticed this memorial to the many horses that have been transported along this highway on their way to slaughter.
Davis Mountains, Ft. Davis, Texas Another roadside stop for one of the places where I collected during last April’s trip. I was hoping we would not be too late for Acmaeodera—there were plenty of plants in bloom but we did not see any. Senegalia greggii (formerly Acacia greggii, commonly called cat-claw acacia) and Vachellia constricta (formerly Acacia constricta, commonly called whitethorn acacia) were both in bloom, and off the former I got the obligatory Stenaspis solitaria male/female pair as well as a Lampetis drummondii, but I collected nothing off the latter. Tried for a couple of cicadas and missed ‘em both!
Davis Mountains,Boy Scout Rd, Texas This looked like a good spot, with water in the creek and lots of butterflies flying around. Beating, however, yielded nothing but lots of lep larvae. It seems we are in the mid-summer lull—too late for spring things, but too early for late summer-fall species. I think we’ll try some higher elevations and see what it is like.
We were headed back towards the highway when I spotted a stand of Thelosperma megapotamicum along the road. We got out so I could take a look at them and immediately encountered this Texas horned lizard who seems to be saying “WTF?!” I swept through the Thelosperma and picked up two Batyle sp., one Enocleris sp., and a couple of species of meloids. There were lots of other plants in bloom, too, including several that are typically attractive to beetles such as Sphaeralcea and Ratibida. However, nothing was seen on them, further reinforcing our desire to go to higher elevations to see if that would improve the collecting.
Davis Mountains, Madera Canyon, Texas We wanted to get up to higher elevation to see if that might improve the insect collecting. It is strange—the Davis Mountains are greener than I’ve ever seen them, yet there are almost no insects, no flowers. Jeff and I were wondering if the deep freeze Texas experienced this past winter might have knocked out insect populations. We beat along the way but just we’re not seeing anything on the beating sheets. We hiked our way up to the overlook, and up there I ran into a few species of tenebrionids running along the trail and doing their famous “headstands” when we disturbed them. On the way back down I saw a few large, red and black clytrine chrysomelids on what I take to be a fall-flowering helianthoid aster (old flowering stalks were 5–6 feet tall), so I picked up a few for Shawn (my scope of insects that I’ll collect expands greatly when I’m not finding anything in the groups that I study). I think we’ve had it with the Davis Mountains, and tomorrow we’ll travel further west and try our luck around Fabens.
Day 3 – Van Horn, Texas Just a quick stop along the highway when we saw a variety of plants in bloom. Things are different at these lowers elevations compared to the Davis Mountains. Sweeping yielded a number of Agrilus sp. (vittate) and two Agaeocera gentilis—I suspect they were on the Sphaeralcea angustifolia (narrow-leaved globemallow), along with an Acmaeodera sp. and assorted other beetles. On a much taller globemallow I found two Tylosis jiminezi (male/female) perched on the foliage—a first for me! I did a little more sweeping further to the south but came up with only a few melyrids and a blister beetle (Epicauta segmenta). Nice stop!
San Felipe Park, El Paso Co., Texas When we first arrived, we were not at all optimistic—it looked like it hadn’t rained in years. However, the Larrea tridentata (creosote) and Prosopis glandulosa (mesquite) were both in full bloom, so we began looking about. Almost immediately I saw Stenaspis solitaria in the mesquites, which in itself is not exciting, but two of the first three I saw were the form that has the distinctly reddish-brown pronotum, which I’ve never seen before. I saw a couple more and tried to get photographs, but they were too skittish. As I searched for them, I caught one Aethecerinus latecinctus (a second got away), one Plionoma sp. (not sure if it’s suturalis or rubens), one Chrysobothris sp. (prob. C. octocola) and one Acmaeodera gibbula. The real fun began, though, when I walked by a creosote and saw a Gyascutus planicosta (should be subsp. obliteratus in this area) take flight. I tracked it to see where it landed, caught it, and then put most of my effort into getting a decent series of individuals. I succeeded, but it took more than four hours with the heat maxing out at 96°F! In addition to the Gyascutus, Jeff was quite excited to see the bright green and orange blister beetle Eupompha fissiceps abundant on the creosote in mating pairs and feeding on the petals of the flowers. I finished off the blister beetle fun by finding Cysteodemus wislizeni (black bladder-bodied meloid) crawling in the sand, which, despite the common name, was decidedly bluish.
After going into town to restock on supplies and catch some dinner, we returned to the park to do some lighting and night collecting. The moon is almost full, which generally puts the kibosh on longhorns coming to the lights, but we decided to try anyway because of the high amount of activity during the day in a rarely-visited location. I set up the Mercury-vapor (MV) light only and skipped going through the trouble to put up the ultraviolet lights also. I also wanted to beat the mesquite since I didn’t have much chance during the day, spending most of my time hunting Gyascutus with an aerial net, and once I got the MV setup going I started whacking the mesquite. Almost immediately, I got three Aethecerinus latecinctus, which came off the first two plants I beat. This motivated me further and caused me to commit to beating for the next hour or so—never even getting a single beetle of any kind! By then the lights had been going for awhile, and I was pleased to see several Derobrachus hovorei (palo verde root borer) crawling on the sand near the light. Even though it is a common species, I’ve not seen many myself, so I was happy to have a nice series to take up beaucoup room in one of my prionid drawers. Otherwise, very few beetles came to the lights, or most other insects as well—the sheet being covered primarily by dozens of white-lined Sphinx moths and lots of wasp/bee-type things. We did enjoy the evening, however, as we sat in our chairs and drank a cold brew between checkings of the light.
Day 4 – Chaparral, New Mexico We had planned to take NM-213 north to White Sands, but public access was blocked at Ft. Bliss. While backtracking, I spotted Sphaeralcea angustifolia (narrow-leaved globemallow) growing along the roadside and stopped to check it out. There was nothing on any of the plants, despite good growth and appearing to be coming into flowering. I did a little beating on Prosopis glandulosa (mesquite) as well—again very little going on, just a few treehoppers, tiny blister beetles, and one weevil. Larrea tridentata (creosote) was in full bloom, just like at Fabens, and here too there were many Eupompha fissiceps on the flowers and in mating pairs. I couldn’t resist collecting just a few and even made a short video of a mating pair engaged in some interesting behavior. I did see one Gyascutus planicosta as it flew by, but I could not track it to see where it landed. Otherwise all I picked up was another Cysteodemus wislizeni (black bladder-bodied meloid)—along with a photo, and a male cicada (maybe Diceroprocta texana) singing on a dry yucca stalk (hand-collected!).
Point of Sands, New Mexico Jeff wanted to stop here to look for Pleurospasta mirabilis, a really cool-looking blister beetle that looks unlike anything else. He found just one by disturbing the host plant (small purple blooms), and I found none—seems we are right at the tail end of their activity period. I looked around for other things also, but there was not much out. I did catch a couple more cicadas (males singing), and near an Ephedra sp. bush I found a mostly-intact carcass of Sphaerobothris ulkei. The most interesting find, however, was a couple of apparently lost pitfall traps—the barriers had fallen over, and the cops were filled with sand and the carcasses of numerous tenebrionids that had fallen into the traps and never been retrieved. I pulled up the cups and filled in the holes to prevent further loss, finding a few live tenebrionids and trogids and one Pasimachus sp. ground beetle that had not yet succumbed in the process.
Hatch, New Mexico While passing through the town of Hatch, I couldn’t resist taking the opportunity to stop and photograph some interesting town characters.
Deming, New Mexico Another roadside stop in an area that was green with flowers and also had Yucca (to look for Tragidion) and Ephedra (to look for Sphaerobothris). Neither of those insects were found, and no buprestids or cerambycids were seen on or swept from any of the many composite flowers about including Thelosperma megapotamicum. I did find a couple of the meloid Lytta biguttata, one on flowers of Cirsium sp. and another on an unidentified yellow composite flower, and Jeff found a huge aggregation of another meloid, Epicauta costata, on herbicide-treated Kali tragus (prickly Russian thistle). I finished off the stop by finding a spectacular ridged tenebrionid beetle walking about after the sinking sun went behind some clouds.
Day 5 – Sunshine, New Mexico We saw a nice stand of what proved to be Picradeniopsis absinthifolia (formerly Bahiaabsinthifolia, hairyseed bahia) and stopped to check them for buprestids/meloids. None were seen, just a few bees and lots of bee flies (genus Geron?). We did find a fair number of Cysteodemus wislizeni (black bladder-bodied meloid) crawling on the roadsides in a patch of Solanum elaeagnifolium (silverleaf nightshade).
Columbus, New Mexico We found a moist drainage along the roadside with plants blooming in abundance, including Isocoma tenuisecta (burroweed) and Sphaeralcea angustifolia (narrow-leaved globemallow); however, insects were very scarce. I didn’t see any buprestids or cerambycids at all on any of the plants, only picking up one Lytta biguttata and one Cotinis mutabilis on the Isocoma and sweeping single examples of a small black/red Cleridae from the latter and a yellow-flowered composite.
Animas, New Mexico We drove a fair distance west hoping to get into a different rainfall system in hope that insects would be present and saw a roadside in good bloom with the surrounding creosote scrub also green and blooming. As soon as we got out of the car we saw big beetles flying overhead and tracked them back to several creosote bushes very near the car with an aggregation of yet another blister beetle, Pyrota postica, which were mating and feeding on the flowers and leaves. After taking a few photos (and collecting my small series), I started sweeping through the variety of plants in bloom along the roadsides. I did not see anything on the flowers themselves (including Baileya multiradiata, pretty good buprestid flower) but collected a series of clytrine chrysomelids and one Dectes sp. While sweeping through Sphaeralcea hastulata (spear globemallow), I got one Agaeocera gentilis, and sweeping though a mix of S. hastulata and S. angustifolia (narrow-leaved globemallow) I got three Agrilus sp. (perhaps the same as I collected south of Van Horn, Texas). Finally, on the latter, I found one more A. gentilis perched on the leaf.
Portal, Arizona Finally made it to Arizona, and for the first stop I wanted to try a spot below Portal where I’ve had limited success finding Sphaerobothris ulkei on Ephedra. Last time I was I here I found a few, but not until after being distracted by Gyascutus caelatus and Hippomelas sphenicus in the acacias and mesquites. I vowed not to let that happen this time and weaved a zigzag pattern looking at every Ephedra I could find. While I was doing that. I did see one G. caelatus take flight and then caught another that I saw sitting on Vachellia constricta (white-thorn acacia) but remained focused on looking at the Ephedra. Eventually, after not seeing any S. ulkei, I started looking for other buprestids. The acacias were just beginning to flower—only a few plants had open flowers, and Jeff noticed the tiny silhouette of an insect in flight approaching the flowers. He netted it and showed it to me, and to my surprise it was one of the species in the A. stigmata group (black with two red apical spots)—none of which I have ever collected before but which I believe could be A. davidsoni. We spent the next hour watching for and netting the silhouettes on the few trees we could find with flowers, and then I got the beating sheet out and beat more off of the trees (whether in flower or not) to end up with a nice little series. I’ll be anxious to confirm whether these are A. davidsoni.
South of Willcox, Arizona We got to Willcox around dusk, and the cool, breezy conditions told my gut that it would be pointless to set up the lights. Still, I couldn’t let myself not try, and without much opportunity to look for a good place to set up I just went down Blu Sky Rd to E Moonlight Rd and hoped for the best. My optimism waned rapidly, as conditions continued getting colder and breezier, and not a single insect came to the light—I should’ve listened to my gut!
Day 6 – Jim Wappes Celebration, Hereford, Arizona Fun day with lots of fellow coleopterists at the home of Steven Lingafelter and Norm Woodley in memory of Jim Wappes. We got there in the early afternoon and enjoyed eats, conversation, and war stories from the field.
It was a good day for a party, as rain made insect collecting a no-go. As dusk settled, I admired the incredible view from Steve’s and Norm’s back patio!
The fun extended well into the evening hours. My thanks to Steve and Norm for hosting the celebration—what fun to see and talk to so many entomologists in one place.
Day 7 – Superstition Mountains, Weaver’s Needle Vista Viewpoint, Arizona We awoke to rain yesterday morning in Willcox, and it has stayed with us since—first on our way to Hereford for the Wappes Celebration, then up to Phoenix this morning—our efforts to escape the rain by coming north thus proving futile. I came to this spot on a tip that I might find Agrilus cavifrons on Celtis pallida (spiny hackberry) (although maybe a bit early), and I’d hoped despite the light rain I would still be able to find it. I did not—though I found the plants, but I did get a Chrysobothris sp. that I don’t recognize while beating Senegalia greggii (formerly Acacia greggii, cat-claw acacia). Of course, it was on the first plant that I beat, so I ended up beating for another hour with nothing to show for it! While walking the short paved trail, I found Cercidium sp. (palo verde) tree that had been cut up and showed evidence of buprestid infestation in one of the larger branches, so I retrieved and cut it up for rearing.
Lost Dutchman State Park, Arizona We made a quick stop here to admire its incredible scenery before heading back south.
Upper Tanque Verde Falls Trailhead, Tucson, Arizona The rain finally moved out and it was sunny for the drive back to Tucson, but with still-cool temps we weren’t sure if lighting would be worthwhile. We decided to try this spot—not too high (based on a tip by Bill Warner), and I setup the lights using a technique recommended by Roy Morris that involved placing one ultraviolet (UV) light on each side of the sheet, extending the Mercury-vapor lamp above to the top of the sheet, and periodically shutting off the latter to allow the UV lights the pull in the “shyer” insects before turning it back on. While I waited for the lights to started pulling things in, I did some beating around the area. I only collected one specimen, but it was a Cleridae that I don’t recognize, which was beaten off of Prosopis glandulosa (mesquite). Temps ended up in the lower 70s to upper 60s, but at the lights we still got a few longhorned beetles (Aneflomorpha sp.), a few melolonthine scarabs, and a nice series of two species of Pachybrachis (that I will send to Bob Barney).
Day 8 – Atascosa Mountains, Ruby Rd near Atascosa Lookout Trailhead, Arizona The primary quarry here was Acmaeodera chuckbellamyi, a species I described in 2014 from a single specimen collected by my friend and hymenopterist, Mike Arduser, at this location on flowers of Aloysia sp. Several people have tried to find it since—without success, and in June 2011 the area was severely burned by the 27,550-hectare Murphy Fire. I was hoping enough time has passed to allow the area (and beetle population) to recover in this, my first attempt, at finding the species myself. I knew it was a long-shot, and long sorry short I did not find either the beetle or it’s Aloysia host flowers. I did collect a number of other beetles, however, including Lycus lorises, a few longhorned beetles and pachybrachine leaf beetles, and one Acmaeodera quadrivittatoides on flowers of Eysenhardtia orthocarpa (desert kidneywood), several Aneflomorpha sp. and a few pachybrachines on Quercus oblongifolia (Mexican blue oak), and more pachybrachines on Senegalia greggii (catclaw acacia), Mimosa dysocarpa (velvetpod mimosa)—the latter also yielding a few tiny Chrysobothris spp. (one looking like C. lucanus), and Propopis glandulosa (mesquite). Jeff also collected and gave to me a couple of Acmaeodera parkeri on flowers of Talinum aurantiacum (orange flameflower). I hiked 0.7 mi E on Ruby Rd to a spot where I swept a few beetles from low vegetation, and on the underside of a large, fallen branch of Q. oblingifolium I found a large female Polycesta arizonica. Finally, about halfway back to the trailhead I encountered a few tiger beetles on the road near standing puddles of water from the recent rains.
Atascosa Mountains, Peña Blanca Lake, Arizona We came here to look for Deltaspis tumacacorii, which like many rare beetles the odds are against finding it despite it having been taken in the area on several occasions. Again, this would not be one of those occasions, but I was happy to find a tiny tiger beetle (Cylindera viridisticta arizonensis) along the creek and even happier to beat a series of two species of Paratyndaris, one large Lampetis webbii (only my fifth specimen). and one Aneflomorpha sp. from mostly dead Senegalia greggii (catclaw acacia).
Huachuca Mountains, lower Carr Canyon, Arizona After dropping Jeff off at his hotel in Tucson (he flies home in the morning), I high-tailed it down to Carr Canyon to do some light collecting. It has been a long time since I’ve seen my sheet covered so quickly and thoroughly with insects! My quarry was longhorned beetles—of which I got a nice variety, but who can resist also the variety of scarabs, ground beetles, tenebrionids, blister beetles, and even planthoppers that flock to the lights in the mountains of southeastern Arizona? I’ll have to control myself a little better in the coming nights! Walking about along the roadsides (hoping to see Amblycheila giant tiger beetles), I encountered a gorgeous male Aphonopelma chalcodes (Arizona blonde tarantula).
Day 9 – Huachuca Mountains, Copper Canyon, Arizona I met Steve Lingafelter and Norm Woodley at their house, and together we drove to the famed Copper Canyon on the south side of the Huachucas. On the way I got a nice primer about the species that have been collected there and the plants they have been collected on. Steve and I started out walking the trail up the canyon while Norm swept the area down below. I pretty much beat every oak along the way, for a while only getting a smattering of beetles—Agrilaxia sp. on Quercus emoryi (Emory oak) and also on Q. arizonica (Arizona white oak) along with Sternidius decorus?. About a half-mile up the trail I beat dead branches of Q. hypoleucoides (silverleaf oak) and, not seeing anything at first, said “I’m going back; I’m literally not getting anything.” Right then, a small black beetle on the sheet caught my eye. I looked at it closely and realized it was a Mastogenius (prob. M. robustus)! I popped it in the bottle and beat more dead branches from the same tree and got not only another Mastogenius but also Tigrinestola tigrina. Freshly motivated, I spent the next half-hour working all the oaks in the area—and, as often happens, did not see another beetle! Nevertheless, it was hard not to be happy with the beetles that I’d gotten.
I walked back down the trail and met Norm, who was just starting up. He filled me in on the results from below, which included sweeping a few Agrilaxia hespenheidei—one of my target species—and an Agrilus sp. on Bouvardia ternifolia (firecrackerbush). I decided to work the slope under the road, reasoning that Norm had likely already worked the flat ground below. On the first B. ternifolia I approached, I saw an A. hespenheidei on the flower, gave the plant a sweep, and caught not only the A. hespenheidei but also an Agrilus sp. (maybe A. latifrons). Over the next hour I would sweep a nice series of A. hespenheidei from B. ternifolia (but not another Agrilus sp.). While I was doing that, I also swept the numerous stands of Acaciella angustissima (formerly Acacia angustissima, prairie acacia) looking for the large, spectacular Agrilus cavatus. I would find two, and considering that I swept perhaps 50 or more stands they were well earned. Also, in the meantime, I noticed Acmaeodera parkeri on small blue flowers that I eventually identified as Evolvulus arizonicus (Arizona blue-eyes). The flowers were few in number and the beetles difficult to catch, so I only ended up with two specimens. Further down the slope the flowers much more abundant, but there was not a beetle to be found on them. In the waning moments of my visit, I encountered two Trichodes peninsularis horni on flowers of Lasianthaea podocephala (San Pedro daisy).
Eventually we all met up at the car, compared our catches (not surprisingly, Norm did very well with buprestids and Steve did very well with cerambycids), and I did okay in both counts. We headed back over Montezuma Pass and were greeted with stunning views looking down into the Coronado National Monument!
Huachuca Mountains, Miller Canyon, Arizona After dropping Steve off, Norm and I went to nearby Miller Canyon to look at a spot where he has collected three species of Taphrocerus (I’ve only collected two, but only once way back in 1987 at a spot in the lower canyon). We thought it might be too late in the season, but it was at least worth a shot. The sedges were lush and green, but the “sedgy wedgies” were absent. Looks like I’ll have to just come back out in April or May!
After striking out with Taphrocerus, I went back down to the lower elevations of the canyon to look for Tragidion on the stand of Baccharis sarothroides (desert broom) that occurs there. Once again, I was likely too late to find them, but as with Taphrocerus it was certainly worth a shot, and again I would not find any despite looking and most of the large plants in the area. I did find a few Euphoria leucographa feeding on the sap flows and a very large red/black clytrine, so it wasn’t all for naught. Just another reason to come out earlier in the season.
Day 10 – Santa Rita Mountains, upper Box Canyon, Arizona After getting reports of buprestid activity near Madera Canyon, I decided to head to the Santa Rita Mountains today instead of continuing in the Huachucas. The shortest route to this most famous of canyons in the Santa Ritas goes down Box Canyon, a less-well-known but still-fantastic canyon in its own right and where I’ve had good luck collecting the two previous times I’ve been there (August 2018 w/ Art Evans, Steve Lingafelter, and Norm Woodley; and September 2019 w/ Jeff Huether). I stopped at the “dry falls” and worked my way back up the road to a point where I’ve collected the majority of my insects there. Along the way, I beat the flowering Eysenhardtiaorthocarpa (desert kidneywood)—insects were not numerous on the plants, but over the course of the trips up and back I got Acmaeodera gibbula, A. cazieri, two Aneflomorpha sp., and a few Lycus sp. I also swept the just-beginning-to-flower Mimosa dysocarpa (velvetpod mimosa) but got just a single Sphaenothecus bivittatus. When I reached the top of the canyon, I looked for a small patch of Allionia incarnata (creeping four-o’clock) in the steep road bank, off the flowers of which I have previously collected Acmaeodera cazieri, A. parkeri, and A. yuccavora. I found the patch, but the plants were not yet in flower. What was in flower on the flats above the bank, however, was Talinum aurantiacum (orange flameflower), off which I collected all three species (A. cazieri being the most abundant and only a single A. cazieri). As at previous stops this week, it seems that insect activity is beginning but is still a bit shy of coming into full peak.
While I was collecting, a caravan of cars came by. They turned out to be filled with entomologists attending the Invertebrates in Education Conference, one of whom I knew—Tad Yankoski of the Sophia M. Sachs Butterfly House in my hometown of St. Louis. He handed me a vial containing a large, live individual of Polycesta aruensis. I was excited to see this, especially when he told me he found it and saw many more in the flats below Madera Canyon, where I had planned to go next!
Santa Rita Mountains, flats below Madera Canyon, Arizona It was a frustrating afternoon on several fronts. Starting off, I had trouble finding the Polycesta aruensis locality, and when I finally did find it there was nary a Polycesta to be seen. Perhaps they sleep during the heat of the day.🤷 After that, there was little time to go anywhere but Madera Canyon, where I spent a half-hour beating Quercus oblongifolia (Mexican blue oak) hoping to see Chrysobothris chalcophoroides (I didn’t) and another two hours checking out Baccharis sarothroides (desert broom) in the area where I collected Stenaspis verticalis and Tragidion deceptus two years ago (also fruitless). Of course, the dreadfully common Stenaspis solitaria was everywhere, but all I ended up collecting was a tenebrionid on the 2-track, a clytrine beaten from Cercidium aculeata (retama), and one Euphoria leucographa along with a nondescript cerambycid (Heaperophanini maybe) on B. sarothroides. On the way back to the vehicle, I encountered a dead, mostly skeletonized deer, and while I rarely collect from carcasses, I noticed a little green beetle crawling on the jaw bone. I figured it must be the cosmopolitan clerid, Necrobia rufipes—something I’d not seen before, so I collected it and tried to collect but missed another one.
Santa Rita Mountains, lower Florida Canyon,Arizona I suppose I can credit my frustrating afternoon for one of my best nights of lighting ever. I stumbled upon this spot at the bottom of Florida Canyon during this afternoon’s Polycesta wild-goose chase and immediately thought, “Wow, what a perfect spot to set up a light!” A nice place to pull off the road with a small, level clearing embedded within low-elevation oak woodland. There was even a babbling creek in the background! It was close to dark by the time I returned and set up the lights (would’ve been even later if I’d gone into town for a “real” dinner). Ironically, there were neither the diversity nor quantity of beetles as two nights ago in lower Carr Canyon. But the cerambycids brought it… and kept bringing it! It seemed like every time I got up to check the sheet there were another 4–5 individuals. I ended up leaving the sheet up for four full hours and collected perhaps 40–50 specimens representing a dozen or more species. A few I don’t recognize, and most of those that I do recognize have resided in my cabinet in precious few numbers until now. It’s been years literally since I’ve had a night like this, and it’s a nice shot of motivation leading into the last few days of what is starting to feel like a long trip.
Day 11 – Madera Canyon Rd, Continental, Arizona I came back to the spot where Tad Yankoski had seen Polycesta aruensis so abundantly yesterday morning but which was completely absent by the time I got there in the afternoon. I did not see any adults on the trees this morning either and was about to give up when I spotted a few partially dead trees with very large, apparently fresh emergence holes in the main trunks that were the perfect size for P. aruensis—good thing I brought my chainsaw! I cut a trunk with its branches and segregated the cut up wood into age (fresh dead versus older) and size (twigs, medium branches, and main trunk) classes. While I was doing this, a Polycesta adult dropped off one of the fresh-dead, medium-sized branches! I beat the remaining branches on the tree and on nearby trees but did not see any more, so whatever Tad witnessed yesterday morning must have been an ephemeral event, perhaps related to synchronized emergence from the very trees among which I collected the wood. NOTE: don’t let anyone tell you that cutting up wood for rearing beetles is anything but a sweaty, exhausting endeavor, even with temps still in the mid-80s and decent cloud cover!
Santa Rita Mountains, lower Florida Canyon, Arizona I had such good night collecting here last night that I thought I’d come back and see what I could find during the day in this ribbon of riparian oak/hackberry woodland. Almost immediately I beat a Paratyndaris sp. off of dead Celtis reticulata (netleaf hackberry). The tree was very dead, but I knew Paratyndaris spp. like old, dead wood, so I split open some of the branches and found larvae inside and also a dead and unemerged but perfectly intact adult of a very tiny Chrysobothris sp. inside one of the smaller branches. Beating on other plants in the area was, in general, fruitless, but occasionally (and just often enough) I encountered something of interest that motivated me to continue working: Paratyndaris sp. and Agrilus sp. on Quercus oblongifolia (Arizona white oak), a small red/brown elaterid on Prosopis glandulosa (mesquite), and Acmaeoderopsis sp., Paratyndaris sp., and a few clytrines on Senegalia greggii (cat-claw acacia).
Santa Rita Mountains, Gardner Canyon, Arizona Last night, I got a message from fellow buprestophile Robert Velten, who told me that he would be in Gardner Canyon the next day, so after finishing at Florida Canyon I drove over to Gardner Canyon to meet up with him. Despite being longtime correspondents, Rob and I had never actually met face-to-face, so I was thrilled to have the chance to do so and spend some time with him in the field. Joining him were his mothing buddies Steve McElfresh and Paul Tuskes, and a little later our mutual friend and Arizona coleopterist-extraordinaire, Margarethe Brummermann, also joined us for a night of lighting. It was great to spend time at the lights with so many like-minded folks! There were three light stations between us, but the weather was less than cooperative—a persistent cool breeze accompanied constant lighting and thunder in the mountains above. Eventually, the threat was realized when the skies opened up, prompting a hasty dismantling and storage of all my lighting equipment safely inside the vehicle. Nevertheless, in the time that I was able to collect, I got a small number of longhorned beetles (half of which came to my light in the moments I was taking it down—longhorns typically become very active right before a storm) along with a variety of showy scarabs and clerids. The rain ended as quickly as it began, so the socializing continued. The entire evening I was continuously taunted, however, by a large prionid sitting inside its emergence hole on the trunk of a large Quercus emoryi (Emory oak). It only showed its jaws and antennae, and if I even touched the tree to boost myself up for a closer look it withdrew deep into the hole. I’m convinced it was Nothopleura madericus—a species I’ve never collected. I can still hear it laughing at me! My attempt to find one out and about by scanning the trunks and branches of of the other oaks in the area with my headlight was not successful, although I did collect another elaphidiine longhorn in such manner.
Day 12 – Santa Rita Mountains, Gardner Canyon, Arizona Rob had noticed a stand of Anisacanthus thurberi (desert honeysuckle)—a host for Spectralia cuprescens—along the road into Gardner Canyon, so together (after morning coffee!) we checked the spot on the way out. The plants were in the early stages of leafing out, and after visually inspecting them for a while and not seeing anything I decided to get out the beating sheet to sample the stand more thoroughly. My eyes did not deceive me—neither one of us found any. Too early? Low population? Who knows! I did beat one clytrine off the plants and collected a few weevils by beating Prosopis glandulosa (mesquite) before finding Acmaeodera parkeri and A. cazieri on the flowers of Allionia incarnata (creeping four o’clock). The flowers were common in the area around the road, but no Acmaeodera were seen until I started scaling the steep hillside nearby—a similar situation in which I’ve found these species on this flower in Box Canyon.
Huachuca Mountains, upper Carr Canyon, Reef Township Campground, Arizona I’ve been wanting to explore the higher reaches of Carr Canyon ever since I arrived in Arizona a full week ago. It is the only high canyon in the Huachucas that has a road leading all the way into its upper reaches. At these high elevations the forest is Pinus ponderosa (ponderosa pine) and Quercus hypoleucoides (silverleaf oak). There are many species of woodboring beetles at these high elevations that simply aren’t found down below. Another reason is the recent discovery up here of one of the rarest and most enigmatic of North American longhorned beetles, Placoschema dimorpha. Not even know to science until it was described from Mexico in 2007, it has since popped up here and a few other places in southeast Arizona—some of which have been heavily studied by coleopterists or many decades. Now, I didn’t actually <u>expect</u> to find such a rare thing, but maybe I could get lucky or at least find some other unusual species. The specimen at this location was photographed on a burned pine tree; however, I do not think that is the host (as far as I am aware, no species in the tribe utilizes gymnosperms as larval hosts). I think the host must be oak, as is the case for many trachderines. So, while I kept an eye out for burned pine trees, I also looked for oak, and especially recently dead oaks showing signs of woodboring beetle infestation. I did some of beating on Q. hypoleucoides and had collected just a clerid (Enoclerus bimaculatus) when I came upon a recently fallen Q. hypoleucoides that showed a few buprestid(ish) emergence holes and looked to be “the right age.” Cutting away the bark of the trunk revealed galleries, and chopping into sapwood revealed buprestid larvae in their galleries. I tagged it for retrieval, eventually cutting it up and segregating the trunk sections from the branches. Very nearby, I found another dead Q. hypoleucoides, this one much smaller and apparently cut rather than fallen. Unlike the previous one, however, this one showed the round holes with ejecting frass that indicated infestation by cerambycid rather than buprestid larvae. Cutting into the wood confirmed the presence of such, and so this one also was later cut up and bundled for bringing back. I saw no beetles on the trunks of any of the many fire-scarred pines lofting overhead, but at one point I spotted in the distance the telltale brown flagging of a recently died pine up the slope. Hiking up to it took some effort, but when I reached it the first thing I saw was a giant click beetle—Chalcolepidius apacheanus (Apache click beetle)—nestled against the ground at the base of the trunk (apparently ovipositing?). Inspecting the trunk of the tree itself, I noted just a few buprestid emergence holes that seemed fresh. Once again, chopping away the bark revealed the frass-packed galleries, and chopping into the heartwood revealed a large pre-pupal buprestid larvae. This was put into a vial, and I noted the location so I could return with the chainsaw and “bring ‘er down.” As I was cutting up the oaks, I found some small, recently cut pine branches near where I had parked the car. I found (and accidentally killed) a woodboring beetle larva of some type (I mangled it pretty good, but I think it was a buprestid) in one of them, so that was good enough to earn a spot in the rearing tubs. Unfortunately, I was not able to retrieve the dead pine tree—cutting up the oaks took a fair bit of time, during which darkening clouds gathered over the nearby peaks. Eventually cracks of thunder began piercing the air. It was all I could do to get the oaks into the car and all of the equipment put away before heavy rain drops began pelting the car. I had no idea what the storm would bring, but the last thing I wanted to be was stranded on the top of a mountain on my last full day of field collecting. As it turned out, the storm was more bark than bite (although the sharp drop in temperatures would kill lighting later in the evening). Perhaps I’ll be able to get back up the mountain in the morning and retrieve the pine tree.
Huachuca Mountains, lower Carr Canyon, Arizona It seems like forever ago that I began this trip, and now the last night of collecting has arrived. I decided to come back to this spot where I’d had such good luck earlier this week, but I wasn’t optimistic given how rain chased me out of the canyon earlier. My pessimism was warranted, and while I did picked up a variety of things, it included only two longhorns—both rather pedestrian species. No, the real charm of the night came not from collecting insects, but after the lights were down and my mind was free to wander as I leaned back in my chair and gazed into the crisp, dark, starry Arizona sky—its perimeter along the horizon bound by a craggy silhouette of nearby oak trees and distant peaks; from listening to the sounds of the night, alternately focusing on the individual cricket or distant coyote versus the chorus as a whole. Only to the north could I see the faint glow of city lights—the only sign that anything beyond me and this moment exist. These moments happen only once on a trip (maybe twice), and they are to be savored; indelibly stamped into the memory banks for future enjoyment; one of those experiences that, when recalled, is guaranteed to trigger euphoric recall.
Day 13 – Huachuca Mountains, upper Carr Canyon, Reef Township Campground, Arizona I went back up to the top of Carr Canyon to retrieve the dead Pinus ponderosa that I found yesterday. Good thing I did, as I also found my favorite hatchet (which I’d inadvertently left behind yesterday). The 9” diameter trunk was almost too big a job for my Stihl MiniBoss chainsaw, but I kept at it and finally felled the the 25’ tall tree. It took three trips up and down the steep slope—each round trip almost a half-mile—to haul out the upper 10 ft of trunk and associated branches, which I segregated into three batches for rearing: trunk, 1–2” día. branches, and <1” dia. twigs. Now let’s hope the effort was worth it and I get some good species out of the wood.
Huachuca Mountains, near Carr Canyon, Waterfall, Arizona One last stop to take in the terrifyingly magnificent views from atop Carr Canyon! You can see the road that I traveled up this morning snaking back down the right side of the mountain. The massif to the left is the highest point that you can see from the valley below, but there are much higher peaks behind me.
Epilogue Sadly, I could squeeze no more stops into the trip—I’d allowed myself two days to make the 24-hour drive back to St. Louis, and it was already almost noon on the first of the two days. I left, however, with a rack full of vials filled with insects and a renewed love for Arizona and the desert southwest that first captured my heart some 37 years ago!
Balmy conditions continue as we head into the back half of October. For today’s hike, I decided to try something new and settled on Grand Bluffs to check out the spectacular views that are said to be available from atop its 300-ft bluffs that overlook the Missouri River valley.
I expected fall colors to be well advanced by now, but at least in this area the forests remain mostly green with only hints of the yellows, reds, and oranges that will soon explode across the canopy. The parking lot is near the valley, so the hike to the overlook is mostly up, sometimes for fairly long stretches. The views from the lookout, however, are breathtaking and well worth the effort to get there.
On the way up, fall asters (Symphyotrichum spp.) and goldenrods (Solidago spp.) bloomed prolifically along the trailsides under mesic deciduous forest—I saw three species of the former (anomalum, oolentangyense, and turbinellum) and two of the latter (nemoralis and petiolaris).
Insects seen included syrphid flies and halictid bees on the fall asters, several warty leaf beetles (Neochlamisus sp.) feeding on foliage of black oak (Quercus velutina), and gemmed satyr (Cyllopsis gemma) butterflies flitting above the forest floor. A male eastern harvestman (Leiobunum vittatum) sitting in the trunk of a shagbark hickory (Carya ovata) proudly displayed his elongated, spiny pedipalps for all to see.
The hike back down was almost as deliberate as the hike up, taking care to watch my footing as the late afternoon shadows grew longer and sharper through the dappled sunlight. While 2.7 miles is not a long hike, it was sufficient for the day, and I look forward to returning during the winter when an open canopy will afford even more spectacular views from atop the bluffs.
By pure coincidence, the WGNSS Botany Group decided to visit Victoria Glades for today’s weekly field trip—just one day after I’d made my own solo visit, so for me a bonus visit! You might think that would result in me seeing the same things that I’d already seen, but unlike yesterday’s solo outing, I had the benefit of multiple pairs of eyes and solid botanical expertise accompanying me and directing my attention to several new-to-me plants.
A clump of sunflowers (Helianthus sp.) caught our attention even before we left the parking lot. Our initial impression was Jerusalem artichoke (H. tuberosus), but it lacked the alternate uppermost leaves usually found in that species. Nevertheless, when we ran it through the key and came to a choice between this species or woodland sunflower (H. hirsutus), we decided that it must be H. tuberosus. As we walked by another clump of the plants, we noticed the first insect of the day—a still-bedded-down helmeted squash bug (Euthochtha galeator), a type of leaffooted bug (family Coreidae)—on one of the older flower heads.
On the glade proper (MDC “west” side), the group was just as excited to immediately see the Great Plains ladies’-tresses orchids (Spiranthes magnicamporum) in bloom as I was yesterday, and I couldn’t resist the urge to take just a few more photos of two of impressively flowering specimens. We also noted the now brilliant red flowering dogwoods (Cornus florida) that anchored the small woody hammocks dotting the glade and were surprised to find a total of eight “tree” species taking refuge in the hammocks, the others being Carolina buckthorn (Rhamnus caroliniana), deciduous holly (Ilex decidua), eastern red-cedar (Juniperus virginiana), dwarf hackberry (Celtis tenuifolia), sugar maple (Acer saccharum), gum bumelia (Sideroxylon lanuginosum), and persimmon (Diospyros virginiana).
We made our way to the interface between the glade proper and a large dry post oak woodland hammock, where prairie gentian (Gentiana puberulenta) was found last year. As we walked, we got into a discussion about the pronunciation of the species name for Solidago gattingeri (Gattinger’s goldenrod). While “guh-TIN-jur-eye” may follow general guidelines for pronouncing latinized names, these guidelines do not apply to patronyms—i.e., scientific names derived from the name of a person, and for which the pronunciation of the person’s name is conserved in its latinized form. Since S. gattingeri was named after the German-born botanist Augustin Gattinger (pronounced “GAH-ting-er”) (1825–1903), the latinized form, which has an “i” added to the end of the name, and is thus pronounced “GAH-ting-er-eye.
Reaching the interface and searching for the gentian would prove fruitless, but it was not without its consolations. The first of these was one of the blue asters, which we eventually determined to be azure aster (Symphyotrichum oolentangiense)—distinguished by its rough leaves with the basal ones arrowhead-shaped. This species sparked a further conversation about how to pronounce the double-o at the beginning of the name. In latinized nomenclature, all vowels must be pronounced (except the diphthongs ae and oe, both of which are pronounced “ee”). The specific epithet derives from the Olentangy River in Ohio, but the person who named the species misspelled it, adding an extra “o” at the beginning. Unfortunately, the rules of nomenclature demand that original spellings, even those considered misspellings, be conserved (unless certain special conditions are met), thus, the specific epithet must begin with a double-o, and both of them must be pronounced. Further, since it is derived from a place name, the pronunciation of “Olentangy” also must be preserved. As a result, the species name is pronounced “oh-OH-len-TAN-jee-in-see.”
As we continued searching the glade-woodland interface, we encountered a healthy little patch of rough goldenrod (Solidago radula). Only a few of the plants bore inflorescences in good condition, but the plants were nevertheless recognizable by their small size and numerous rigid, scabrous, serrate leaves. We were pleasantly surprised to find this fairly conservative species (CC = 6), and everybody agreed that the species name is pronounced “RAD-yew-luh.”
When we reached the area where we were certain we should find prairie gentian, we instead found silky aster (Symphyotrichum sericeum)—their silvery leaves glistening in the sun and branchy stems mostly devoid of lower leaves making them visible and recognizable even from afar. This highly conservative species (CC = 9) is restricted to only a handful of states in the upper Midwest.
Once satisfied that we’d done our due diligence in our search for prairie gentian, we headed towards the top of the knoll where stiff sunflower (Helianthus pauciflorus) and rough white lettuce (Nabalus asper) have been observed in recent years. The sunflowers were found easily, though all in the apparently expanding patch were past bloom, but it took careful searching and reference to a GPS reading to find what amounted to just two, post-bloom white lettuce individuals. This latter species has a distribution centered roughly across Missouri and Iowa and is fairly conservative (CC = 7).
As we headed back towards the parking lot, we passed through a peninsula of dry post oak woodland, giving us the opportunity to see yet another blue aster, this one being prairie aster (Symphyotrichum turbinellum). This is another fairly conservative species (CC = 6) whose distribution centers over Missouri and extends to only a few surrounding states. The elliptic leaves, branched habit, and “vase-shaped” involucre were all clues to its identity.
By then, only John and Kathy remained and were ready to call it a day, but I had a hankering to visit the TNC “east” side to check the ninebarks (Physocarpus olulifolius intermedius) that grow along the toeslopes at the interface between the glade proper and the riparian woodland below to look for Dicerca pugionata—a spectacular jewel beetle (family Buprestidae) that breeds in the plant’s woody branches. This beetle is rarely encountered throughout most of its range across the eastern U.S. but seems to be common at this location—perhaps due to the general unthriftiness of the plants growing along the toeslopes, a drier than preferred situation that may compromise their ability to fend off colonization by the beetle. The beetles can be reliably found in spring and fall by examining the stems and leaves. As I searched for the beetles, I encountered “blue aster #4” on the day—aromatic aster (Symphyotrichum oblongifolium). In the case of this species, the reflexed phyllaries, branched habit, and oblanceolate sessile leaves absent at the base were the first clues to its identity. Crushing one of the leaves and smelling its fragrance left no further doubt.
Continuing my search for the beetles, I noticed a garden spider (Argiope sp.) in its web. Something about it did not look right for the species we normally see in Missouri—the black-and-yellow garden spider (A. aurantia), and I eventually determined it to be instead a subadult male banded garden spider (A. trifasciata). The webs of this species tend to be more hidden than those of A. aurantia, and the preferred habitat is said to be drier, which may explain why this species tends not to be seen very often compared to its more commonly encountered cousin.
Eventually, I found two D. pugionata individuals perched on the outer twigs and leaves of ninebark—just as I expected, and I took comfort knowing that this rarely encountered species continues to thrive in this unique location.
Remarkably, I would encounter one more “blue aster,” finding spreading aster (Symphyotrichum patens) as I searched around and through the dry post oak woodland at the top of the slope in hopes that I might still find prairie gentian. This species, found in Missouri only south of the Missouri River, is easy to identify (even by entomologists) by virtue of its purple ray flowers with yellow disks and strongly clasping stem leaves with distinctive rounded basal auricles.
Five “blue asters” on the day, however, was enough to make this entomologist’s head spin, and with five hours in the field on a spectacular fall day, I finally headed back to the parking lot to close out the day.
Alternative title: Rich and Ted’s “Excellenter” Adventure.
This is the ninth “Collecting Trip iReport”; this one covering a 10-day trip to western Texas from April 27 to May 6, 2021 with friend and local collecting buddy Rich Thoma. Rich and I have done many shorter collecting trips (up to five days) throughout Missouri and in the neighboring states of Kansas, Nebraska, and Oklahoma (in fact, our first joint trip was to Barber County, Kansas way back in May 1986!). This trip, however, was our first truly long one together—10 days of collecting plus a travel day on each end. To take full advantage of the amount of time we had, we chose western Texas; an area that I have visited several times from the mid-90s through 2004 but not since. We wanted to make the trip during early to mid-May, but scheduling conflicts forced us to go earlier. I reasoned that even if it was a bit too early in the season, I could still collect infested wood for rearing—as I did with great success during my April 2004 trip. For Rich, who is more of a general insect collector, the trip provided him an opportunity for extended collecting in an area that he’d not previously spent a lot of time.
Day 1 – Monahans State Park, Shin Oak Picnic Area First stop of the trip. I was hoping to see beetles on flowers and maybe some tiger beetles, but unfortunately the area hasn’t had any rain yet this spring (according to the ranger). The mesquite was in bloom, but the only beetles I beat from it were a few tiny weevils. A few other plants were in bloom, but only one—Hymenopappus flavescens—had beetles on it (mordellids, which I picked up for Enrico Ruzzier). After a lot of walking I noticed Quercus havardii (shin oak) with flagged branches of dead leaves—a bit of investigation revealed it had been attacked by what must be Chrysobothris mescalero, so I collected as many flagged branches as I could find (7 total) and will bring them back for rearing.
Monahans State Park, Sandhills Picnic Area The big dunes are in this area. We didn’t expect to see any insects but brought our nets anyway. As we were walking the ridge we saw two grouse-like birds in the distance. We tracked them for a bit before I decided to go back and get my binoculars. They kept us at bay, but eventually I was able to get close enough to get a good look at them—they turned out to be scaled quail, a new bird for me. We continued tracking them and eventually they were joined by two more individuals. Handsome birds!
Monahans State Park, Shin Oak Picnic Area After going into town and picking up some dinner, we came back out to the park and setup the ultraviolet lights. I didn’t have much optimism based on the lack of insect activity we saw during the day, but the temperatures were still plenty warm (well into the 80s) and we had nothing better to do. We returned to the Shin Oak Picnic Area since it had a mix of open and more vegetated dunes. Glad we did because two male Prionus arenarius, one Megacyllene antennata, and a tiny, unidentified elaphidiine came to the lights. I also found two small darkling beetles crawling on the sand nearby. I searched the surrounding sand hoping to find more males looking for females, or perhaps even a female herself, but found none. Wolf spiders, however, were common on the sand, their glowing eyes drawing attention beyond their abundance. I guess they are a species of Hogna, but I’m not certain—I photographed two individuals. Also got a large bostrichid (Apatides fortis?) at the light. Before we took down the lights, Rich called me over to see a tiny, slender, worm-like snake that we eventually determined was one of the blind snakes (Leptotyphlum sp.)—definitely a first for me.
Day 2 – Toyahyale We stopped here on a tip from Jason Hansen and Tyler Hedlund, who swept good numbers of Agrilus cochisei off of Ambrosia psilostachya (western ragweed)—albeit, a few weeks later during May. I found the plants, but they were very small and low to the ground. Nevertheless, adults could be swept abundantly from the plants, and I was able to take good photos of singles and a mating pair with the big camera (iPhone photo here just to show what they loook like). Also got a single specimen of an apparently undescribed Acmaeodera sp. while sweeping for A. cochisei and one of two A. cochisei adults that I saw on flowers of Sphaeralcea sp.
Davis Mountains, 15.8 mi NE Ft. Davis We stopped here to look for the undescribed species of Acmaeodera, which Jason had found in good numbers during May on blooms of Lygodesmia and Convolvulus. Both plants were present, but neither was in bloom. Still, I found one adult on flowers of Verbina sp. and swept another from roadside vegetation. Ambrosia polystachia (western ragweed) was also present—I looked visually for Agrilus cochisei and did not see any, but I did get one adult and a couple of cryptocephalines in the sweeping that produced the second Acmaeodera.
Day 3 – Point of Rocks Roadside Park The weather turned decidedly cool in the Davis Mountains—first time I’ve ever frozen camping out on a collecting trip. The high temps are expected to stay in the 50s to 60s with a chance of rain for the next few days, so we decided to head down to the Big Bend area where there is still a chance of rain but warmer temps (up to the high 70s). Maybe we’ll come back to this area next week. Before leaving, however, I wanted to check the Quercus vasseyana (vassey oak) at Point of Rocks, where in the past I collected a good series of Mastogenius texanus even earlier in April (it was actually undescribed at the time). I’ve also collected Elytroleptus lycid-mimicking cerambycids on soapberry flowers here in June, although I knew the soapberry would not be in bloom. There was nothing on the oaks, but I did collect a few miscellaneous beetles beating Prosopis glandulosa (mesquite) and found one vassey oak branch with evidence of wood-boring beetle larval feeding and which I collected for rearing.
17 mi S Alpine This is the first of two picnic areas along Hwy 118 going south from Alpine towards Big Bend National Park. There are lots of big Quercus vasseyana and Q. grisea here, so I stopped to see if I could find any infested wood. Bingo—one of the Q. grisea had a dead branch hanging from it that looked recently dead, and breaking apart a few of its smaller branches revealed fresh larval workings of some kind of buprestid (perhaps Polycesta arizonica). I cut of the branch and will bring back the bundle for rearing.
26 mi S Alpine This is the second of two picnic areas south of Alpine on Hwy 118 towards Big Bend National Park. Rich and I have both stopped here before, and Rich brought back infested wood (apparently Juglans sp.) from which I reared Chrysobothris comanche, so that was the plan again unless we saw active insects. We did not, so I scanned the trees and found a small Celtis laevigata (sugarberry) that had recently died—the bark was peeling, but there were no emergence holes that I could see. I started chopping into the trunk wood and quickly encountered a large buprestid larvae in its “pre-pupal fold”. This could be Texania fulleri based on host and location, so I cut a couple of bolts from the trunk to bring back for rearing. The branches also showed fresh larval workings, so I cut up one along with its smaller branchlets to also bring back for rearing.
3.3 mi W of Hwy 118 on Agua Fria Rd. Last stop of the day, which I was told could have water with tiger beetles. The creekbed was bone dry, and I collected but a single Chrysobothris sp. beating Prosopis glandulosa in flower—amazing given the proliferation of wildflowers that were in bloom. We did find a nautiloid/ammonite-type fossil in the bone-dry creekbed, which Rich says is of Cretaceous origin based on clam fossils in the underlying layer, and I tracked a common poorwill (Phalaenoptilus nuttallii) for a little bit, eventually getting close enough for the rare iPhone bird photo. Interesting position it assumed upon landing with its wings outstretched above its back.
Big Bend Ranch State Park, West Contrabondo Campground We arrived in Study Butte with just enough time to check into a motel and get dinner before heading out to Big Bend Ranch State Park. The drive through the park was incredible as we searched for a spot to setup the lights. After finding such spot, however, we were greeted as we got out of the car by a stiff, chilly wind. I knew there was no point in going through the trouble to setup, so instead we drove further down the 2-track to an amazing scenic overlook into an impressive box canyon. Words cannot describe the contortions this acrophobiac took to find good position for these photos, but it was well worth the views.
Day 4 – Big Bend National Park, Boquillas Canyon Trail Well, the rain and cold continue to follow us. Rather than trying once again to drive somewhere else to escape, we decided to just sit this day out and visit the national park (not a bad Plan B!). Boquillas Canyon is an amazing slice through the rocks along the course of the Rio Grande River, and we hiked as far into the canyon as we could before sheet rock on the left and deep water on the right prevented any further progress. We saw only two insects—a tiger beetle larva that I “fished” out of one of the many larval burrows we saw (definitely Tetracha, and likely T. carolina) and a velvet ant (black head and pronotum, red abdomen).
Big Bend National Park, near Panther Junction Driving towards the Chisos Mountains after hiking the Boquillas Canyon Trail, we encountered this fine adult male Aphonopelmis hentzii (Texas tarantula) crossing the road.
Big Bend National Park, Chisos Basin, Window Trail After lunching at Panther Junction, we headed up the into the Chisos Mountains towards Chisos Basin. Heavy clouds shrouded the peaks, so we weren’t sure what we would encounter up there, and once in the cloud zone and then heading down into the basin we could hardly see anything. Suddenly the western side of the basin came into view, still overcast and drizzly but at least free from the heavy fog that shrouded the eastern half of the basin. That made our decision of which trail to hike easy—the Lost Mines Trail under heavy fog versus the Window Trail with semi-clear views. I’ve hiked the Window Trail several times, but the last time was 17 years ago, and Rich in his single attempt a year or two later did not make it to the “Window” due to an impatient 10-year old son in tow. The views on the way down the canyon were spectacular—not despite the rain and clouds but because of it. It is a rare opportunity to see richly moist desert mountains shrouded in mist. At one point on the way down, a Woodhouse’s scrub jay (Aphelocoma woodhouseii) caught our attention—sitting very nearby in a tree before hopping down to the ground and nonchalantly pecking for bugs. Another soon joined him, first landing on a branch just a few feet above me and returning my captivated stare for a few moments before joining his mate on the trail ahead of us… followed shortly by a third individual. Their soft chirpings were a charming contrast to their more familiar raucous calls, and Rich and I soaked in the moment until they moved on. The trail is not an easy hike—nearly 7 miles round trip, dropping over a thousand feet on the way down, and then gaining over a thousand feet on the way back. The “Window,” however, is a sight to behold—a narrow gap in the rocks soaring high overhead with a view out onto the desert floor almost a thousand feet below. There is tempting danger at the window—its smooth, water-carved rocks are deceptively slippery even in dry conditions, and with the rain of the day they were especially so. I would not be surprised to learn that at least one person had made a fatal error in judging how close to the window one can get. They would have had plenty of time to think about that mistake on the way down! The views on the way back up were even more breathtaking, as fog enshrouded the high peaks towering above us. Periodically the sun attempted to push through the clouds, creating surreal lighting in a battle of sun versus rain, but eventually the rain won out and fell steadily on us for the last, switchback-laden mile back to the trailhead. As for insects, we actually did see some despite the rain—a few blister beetles resting torpidly on yellow composite flowers.
Day 5 – Big Bend National Park, Sotol Overlook We’re on our way to Santa Elena Canyon and stopped at this overlook. From a distance of 14 air miles, the canyon entrance looks like a tiny split in the rocks, belying the 1000-foot canyon walls that await us. Cacti were nicely in bloom, if a bit rain battered—two species of yellow-flowered Opuntia (pricklypear) and the always extraordinary pink flowers of Cylindropuntia imbricata (tree cholla). No insects were to be found, but we did find a live Orthoporus ornatus (desert millipede)—the first that we’ve seen on this trip—who obliged us by coiling into its classic defensive pose.
Big Bend National Park, Santa Elena Canyon From 14 air miles away, Santa Elena Canyon looks like a tiny split in a little cliff (see previous post). Up close, however, it’s soaring walls tower 1000 feet overhead! The hike into the canyon features a tortuous staircase to bypass a narrows, followed by a leisurely stroll along the canyon bottoms along the Rio Grande River. Rain last night has triggered an en masse millipede emergence, and even a few insects were seen: velvet ant; Acmaeodera mixta, Trichodes sp. and Gnathium sp. on yellow composite flowers; and Omorgus sp. crawling in the sand.
Big Bend National Park, Cerro Castellan (Castolon Peak) The layers visible in Cerro Castellan reveal millions of years of volcanic events. Stacked in this tower are several lava flows and volcanic tuffs (ash deposits), with layers of gravel and clay from periods of erosion between eruptions. Cerro Castellan’s cap rock is the same lava that formed the Chisos’ South Rim. The lighter orange and gray layers beneath are tuffs.
Big Bend National Park, Tuff CanyonTrail Some of the oldest layers of volcanic rocks lie at the bottom of Tuff Canyon. It is dry most of the time, but summer thunderstorm runoff churns through the canyon, cutting it deeper. This canyon is narrower and deeper than most others in Big Bend, partly because the light gray volcanic tuff is relatively cohesive. Swift, powerful floodwaters will cut down through any kind of bedrock, but the tuff is better able to resist the widening effects of sideward erosion.
4.6 mi W of Langtry After leaving Big Bend National Park we started making our way towards the Del Rio area in Val Verde Co., where we plan to meet up tomorrow with a few other beetle collectors (Dan Heffern, Brian Raber, and Ed Riley). I noted that our path took us right by the type locality of the recently described tiger beetle, Amblycheila katzi. I didn’t have much hope of actually seeing the species, given that the season seems to have even really started yet and the earliest record of the species is the 23rd of May. Nevertheless, since we happened by the spot right as dusk was falling it seems a good idea to at least try. First we walked the limestone 2-track just to see what was out and about (just a few darkling beetles), then we started checking the limestone ledges where the tiger beetle can be found. We checked about 100 m of ledge without seeing any, and I was about ready to call it a night when we finally spotted one. It was running in a seam about 2 m above the ground and was unmistakable. My attempt tiger an in situ photo failed at first, and it almost escaped deep into a crevice before I pulled out my long forceps and pulled him out by a tarsus. It gave me a healthy pinch when I grabbed it while fumbling in my pack for a bottle, but eventually I prevailed. Later on I placed it back on the ledge and covered it with the Nalgene bottle cap, waited for it to calm down, then carefully lifted the cap and got a couple of shots before it began scurrying again. We checked another 50 m of ledge without seeing any and decided to call it a night.
Day 6 – Comstock (prologue) The owner of the motel in which we stayed was super friendly and kind enough to leave a key in the door for our very late arrival last night. Settling up this morning, I saw this on the wall (right next to his vaccination card—two doses) and just had to get a pic. He was only too happy to oblige when I told him how awesome it was and could I get a picture. Hey, no reason to reveal true political leanings if it means we can all just get along.
Amistad National Recreation Area, Spur 406 Campground A quick stop here on the way to meet up with Dan, Brian, and Ed near Devil’s River. There were lots of dead and dying Acacia constricta (whitethorn acacias), off of which I beat a diversity of cerambycids and buprestids from both the dead and dying branches. I found one small sapling of the same with evidence of fresh woodboring beetle larval feeding, so I collected it as well for rearing. Other than that I just collected a few weevils off of living Prosopis glandulosa (mesquite) for weevil-specialist Bob Anderson.
Devils River near Dry Devils River We met up with Dan, Brian, and Ed north of Del Rio and, after exchanging peasantries, followed them into a private resort surrounding a stretch of the Devils River*—considered by some to be the most unspoiled river in Texas. Dan had arranged for access after befriending Dave Barker, a commercial herpetologist who had built a home on property overlooking the Devils River and also a guest cabin on property overlooking nearby Gold Mine Canyon. We met up at the cabin and then carpooled to a spot along the Devils River where Dan and Brian had placed a variety of traps that needed servicing. While they took care of that, Rich, Ed, and I collected in the area around where the traps had been placed. I started off beating dead branches of Vachellia farnesiana (huisache), sweeping blooming Salvia sp. (sage), and beating dead branches of Acacia rigidula (blackbrush acacia) down by the river but collected only a smattering of beetles. I then clambered up the rocks and found good numbers of Acmaeodera spp. visiting flowers of Echinocereus enneacanthus (strawberry cactus) and Opuntia engelmannii (Engelmann’s pricklypear). After collecting my fill of those beetles, I returned to the riverbanks and noticed some large Carya illinoensis (pecan), from which I beat a few Anthaxia (Haplanthaxia) sp. (hoping they are one of the recently described taxa). By then, Dan and Brian had finished servicing their traps and gave me a few specimens that had been collected in their ethanol-baited Lingren funnel trap.
* The accepted usage of the name is without an apostrophe, although the reason for this is a matter of debate.
After finishing along the Devils River, Dave invited us to his home for a few post-collecting beers. Spectacular views overlooking the river.
GoldMine Canyon We setup a variety of light stations at Dave’s cabin a little east of the river. It was warm and dry, so conditions were good, if a bit windy. My two ultraviolet light stations a bit north of the cabin ended up catching the lion’s share of cerambycids, although it was mostly elaphidiines and a Lepturges sp. We also picked up a few tenebrionids and a Carabidae crawling on the ground near the lights. Ed’s mercury vapor/ ultraviolet station on the road west of the cabin attracted a few more cerambycids, including a Lagocheirus sp. Dan, however, got the catch of the night—a Goes that came to Dan’s $6 battery-powered lantern on the road south of Ed’s station. We at first thought it might be G. novus, but that Dan later decided it was just a very lightly marked G. tesselatus. Zephyranthes chlorosolen (Brazos rain lily) blossoms were beautiful at night, their stark whiteness catching the beam of the headlamp.
Day 7 – Gold Mine Canyon Rich and I spent the morning walking the grounds around Dave’s cabin while the others packed up and got ready to leave. I found some oak (Quercus vasseyana) saplings infested with cerambycid larvae, which I cut and bundled to bring back for rearing. Acmaeodera were already coming to the flowers—a couple of small ones on an undetermined white composite, three different species on Opuntia engelmannii (Engelmann’s pricklypear) and Echinocereus enneacanthus (strawberry cactus) flowers, and a couple on Coreopsis? flowers. I beat some of the Diospyros texana (Texas persimmon) looking for Spectralia robusta but did not find any. It got hotter than blazes real quick!
After Dan, Brian, and Ed left, Rich and I went down to the canyon entrance to beat on the oaks and Texas persimmons that dot the sides of the canyon. Nothing was on either plant, however, and I ended up again concentrating on the diversity of Acmaeodera that were coming to flowers of Coreopsis sp., Opuntia engelmannii, and an unidentified yellow composite. I did beat a single Cleridae off a dead branch of mesquite.
Devils Rivernear Dry Devils River After finishing at Gold Mine Canyon, we came back to the Devils River crossing near the first stop we made here for our final stop of the day. Temperatures had maxed out at 99°F! and I wasn’t too motivated to collect much more today, but when we arrived at the spot I noticed some declining Platanus occidentalis (American sycamore) with large emergence holes suggestive of Mallodon dasystomus and old fallen branches with the same suggestive of Polycesta elata. The tree with the Mallodon holes was much too large to cut (and embedded within a thicket of poison ivy), so I occupied myself by collecting a few more Acmaeodera off of Opuntia engelmannii flowers. As I walked the roadway I noticed more sycamore with some smaller trees in the grove that looked recently dead. One was dead from about three feet up and had buprestid workings under loose, peeling bark. I cut just above the live portion (3–4” diameter) and took three 4-ft sections of the trunk above that point, each cut showing internal galleries. If P. elata emerges from these pieces of wood I will be “elated” [Later edit: I did rear the species!].
Gold Mine Canyon For blacklighting tonight we decided to bring the lights down to the mouth of the canyon where we collected this afternoon so we could have acces to anything associated with the oaks. Unfortunately it was a much slower night than last night and cooled off quickly despite the high heat earlier in the day. I only got three cerambycids (one Ecyrus and two Aneflomorpha) and a few clerids at the lights. I also walked the jeep track leading to the mouth of the canyon and the main road outside and didn’t see anything until I almost got back, when I noticed a beetle sitting on the trail that looked a bit odd. When I picked it up I realized it was a buprestid in the genus Melanophila—what the heck?! Totally unexpected to see this beetle at night and especially on the ground instead of on a tree. I suppose it is one of the juniper-feeding species (since pine doesn’t occur here).
Day 8 – Gold Mine Canyon Our plan today was to head over to some spots further west in Val Verde Co., but before leaving the cabin we did a bit of walking around and took a last few photographs.
22 mi N Del Rio I had noted a few scattered plants of Senna roemeriana (two-leaved senna) at this spot a couple of days ago when meeting up with Dan but didn’t have the chance to sample them for Agrilus obtusus—one of my target species for the trip. I found one on the second plant I checked, so I went back to the truck to get my big camera hoping to photograph one in situ. I didn’t see anything on the next plant, but when I tapped it over my net there was another one! I did that for the next hour or so—inspecting and tapping—and never saw another one. Rich did get one sweeping the S. roemeriana (in an area I’d already worked) and was gracious enough to give it to me. There were also tiny bruchids and clerids on the plant. Other than that I got a couple of Acmaeodera mixta sweeping, a couple of Canthon sp. in flight, and a Euphoria kerni on the flower of Zephyranthes chlorosolen.
Hwy 90 at Del Rio River I first visited this spot nearby 30 years ago based on a tip by Dan Heffern, who had reared a Polycesta elata from Fraxinus greggii (Gregg ash). I found the ash on that visit, though I didn’t find any wood infested with that species here, but what I did find was Diospyros texana (Texas persimmon) infested with Spectralia robusta and managed to rear out a few individuals. That was my quarry today, but when I arrived the abandoned road on the northwest side of the bridge was fenced and posted. I took a look on the southwest side and found open access up top and decided to hike down towards the ravine from that point. Things seems to be about as far along here as they were at Devils River, with not much activity except for Acmaeodera coming to the Opuntia engelmannii flowers, albeit not quite the diversity. I found a few more also on flowers of an undetermined yellow composite, Coreposis sp., and an undetermined white composite. Closer towards the ravine I found just a single large F. microphylla (with no signs of infestation) and several D. texana—two of which had the half-live/half-dead branches in which S. robusta larvae live and showing the emergence holes of adults. I collected both branches and will bring them back for rearing.
Amistad National Recreation Area, Pecos River Access Nature Trail Just a quick stop at the Pecos River Access on the east side to walk the short nature trail and gaze at the 300-ft high, 100 million-year-old (Cretaceous Period) limestone bluffs that the Pecos River has cut near the junction with the Rio Grande River (the latter can be seen on the left side of photo 2). The first photo also shows the old road that was originally used to cross the river snaking down the west bluff—traffic today uses the tall bridge in the right side of the photo.
Seminole Canyon State Park, Canyon Rim Trail We came here looking for oak potentially infested with Spectralia roburella. We didn’t find any oak on this trail, but I did find a Acacia rigidula (blackbrush acacia) showing signs of infestation by buprestid larvae (difficult to find such this year because the freeze in February apparently killed or severely knocked back most of this species). I cut up and bundled the wood to bring back for rearing.
Amistad National Recreation Area, Spur 406 Campground We got to Seminole Canyon State Park too late to check with the supervisor about setting up our blacklights at the park, so we came back to Spur 406 Campground where we’d collected a few things two days earlier. Temps were okay and there was no moon or wind, but it was still a very slow night—for me just a couple of elaphidiines, two trogids, two Digitinthophagus gazella (why do I continue to pick these things up?), and a bostrichid.
Day 9 – Seminole Canyon State Park, Windmill Trail We came back to the state park since we ran out of time to look for oak yesterday. The park staff were extraordinarily helpful—both in getting me checked in with my permit and in directing me to the spots where I might be able to find oak. Their first tip—along the Window Trail—paid off, where we found a nice cluster of Quercus fusiformis (plateau live oak) clinging to the upper canyon walls. Most of them had dead branches on them, and I did some beating to see if by some chance the beetles would be out already. They were not, but on the second tree that I examined I found a main branch from near the base with the outer 4–6 ft dead but the bark not peeling and small living sprouts about 2 ft from the base. Pulling apart the dead portion revealed buprestid larval workings, likely my quarry—Spectralia roburella, but these could be old. I cut the branch at the base, however, and found fresh larval galleries in the sapwood of the still-living portion even extending into the trunk—success! I’ll bring this back for rearing and will hopefully get S. roburella out of it. Further along the trail I found a single Senna roemeriana (two-leaved senna), inspected it carefully and didn’t see anything, then tapped the plant over my beating sheet and a single Agrilus obtusus fell onto it to add to the three that I got yesterday. I really wish I could see these things before I beat them off the plants so I could take an in situ photo!
Seminole Canyon State Park, Canyon Rim Trail Another place the park staff recommended to find oaks was along the Canyon Rim Trail. We hiked that trail yesterday for a bit and didn’t see any oaks, but it turns out they were farther down the trail then we went. We headed back out on the trail to find them, along the way checking Opuntia engelmannii flowers for Acmaeodera and seeing only one for the time being. Just past the first of two east-facing ravines where we expected to find oaks, we found one on the canyon edge that looked rather bedraggled. There were some completely dead branches with bark already sloughed but also one large fresher-looking dead branch that had one live branchlet coming out of it about a third of the way up (meaning there was at least a strip of live wood within the branch). I broke of one of the dead branches near the live/dead junction, and there in its gallery was a smallish buprestid larva that almost certainly is Spectralia roburella! I took the entire branch and cut it up to bring back for rearing. We continued hiking along the canyon rim and saw the most amazing views—sheer Cretaceous limestone walls towering 300 feet above the narrow canyon bottoms! Farther down the trail we finally started seeing Acmaeodera on O. engelmannii flowers. By then we’d hiked more than a mile and a half down the trail and temps were beginning to soar, so we turned back, picked up the wood we’d cut as we came back by, and finished the long, hot slog back to the truck.
Comstock As Rich and I were lunching after our last stop, I got a text from Ed Riley about a spot near Comstock where he’d collected what he believed to be Acmaeodera starrae—a species I’ve never encountered. It just so happened that we would be passing by Comstock on our way back east this afternoon, so we stopped to see if we could find it. Bingo—right where and in the flowers he said it would be (an undetermined white composite that I later determined to be Aphanostephus ramosissimus [lazy daisy]). Together we found about 15 specimens, and interestingly about 25% have red rather than yellow elytra markings. [EDIT: I’m not convinced these are A. starrae, but I do not yet know what they are.]
Day 10 – Garner State Park, Wild Horse Creek/Highway/Campos Trails It’s the final day of collecting for the trip, and for our last stop we picked Garner State Park along the Frío River. I was last here back in the mid 90s—nearly 30 years ago, Acmaeodera ornatoides and Polycesta elata being the two species of note that I remember finding. I remember during that first visit that the area reminded me of my beloved Ozark Mountains, especially the White River Hills region in southwestern Missouri—scraggly forests of oak and juniper on steep, rocky slopes over craggy hill and lazy dale. It still does, although the species are a bit different—Juniperus ashei (Ashe juniper) dominates instead of J. virginiana (eastern red-cedar), and a variety of other oaks replace the familiar Ozarkian Quercus stellata and Q. marilandica (post and blackjack oaks, respectively). We hiked a series of trails on the western side of the park, thinking the west-facing slopes would tend to be drier and result in more open, glade-like habitats, and for the most part this was true. Almost immediately after reaching the first glade along Wild Horse Creek Trail, we found A. ornatoides and at least two smaller congeners on flowers of Coreopsis sp. Flowers of Viguiera dentata have been uncharacteristically depauperate of buprestids on this trip, but I picked up a couple of Acmaeodera neglecta/neoneglecta nearby as well. On the Highway Trail a good series of Acmaeodera was found on flowers of an undetermined small white composite, and a few were also found on flowers of Senna roemeriana (two-leaved senna)—though no Agrilus obtusus. The Campos Trail ascended steeply and ruggedly to a nice overlook, where I found one Acmaeodera sp. on the flower of Zephyranthes chlorosolen and then the mother-load—the biggest diversity and abundance of Acmaeodera I’ve ever seen on cactus flowers occurred nearby in a single flowering Opuntia engelmannii. The final specimen of the day’s “Acmaeodera-a-thon” was taken a bit further up the trail on the flower of Echinocereus enneacanthus (strawberry cactus). Fortunately, the trail was all downhill from there (albeit a bit too steep and rocky at times for these no-longer-nimble legs!). We finished off the hike back along the Wild Horse Creek Trail by collecting a branch off a fallen oak that I hope proves fruitful in the rearing box back home and had some lunch. As we were getting ready to leave, I noticed most of the trees in the camping area were Carya illinoensis (pecans)—a great host for buprestids (especially Xenorhipis brendeli), so I picked up several fallen branches from under the trees to complete the wood collecting portion of the trip.
Garner State Park, Brazos River (epilogue) We visited the nearby Frio River for one last look at the park, took a shower, and settled in for the 15-hour trek back to St. Louis.
This is the eighth “Collecting Trip iReport”; this one covering a one-week trip to southern Arizona, New Mexico, and California from September 7–14, 2019 with meloid/cerambycid-enthusiast Jeff Huether. Jeff has been a frequent collecting trip partner during recent years, this being our sixth joint outing since 2012. Our initial objective on this trip was to collect cerambycid beetles of the genus Crossidius occurring across southern Arizona/California—part of a larger effort to sample as many of the named subspecific taxa as possible from multiple locations (including type locations when possible) for future molecular studies. We had good success, though we did not collect every taxon that we were after (we were a tad early in soCal). Also, the fact that we had Crossidius as our primary goal did not mean that we would not concurrently be on the lookout for buprestids (me), meloids (Jeff), or other cerambycids (both of us)—and in that regard we were also successful.
Day 1 – Dripping Springs Mountains, Arizona First stop of the trip, and we’re heading east to Safford. As soon as we got east of Superior up into the mountains we saw a place where Heterotheca subaxillaris was in bloom abundantly along the roadsides and pulled over. There were four species of Acmaeodera on the flowers, and I also found a fifth species on the flower of a small white aster. Nice first stop for the trip!
3.6 mi NW Bylas on US-70, Arizona Continuing our way to Safford, Jeff saw some patches of sunflower and wanted to look for Epicauta phoenix. I found the first two (but not in sunflower), and then Jeff found two more. As we were walking back to the car I noticed a Crossidius suturalis sitting on Isocoma tenuisecta that was not quite in bloom, and then another nearby on the same plant. We searched the area again, but the only plants were those few right around the car.
5.7 mi NE Safford, Arizona After getting a hotel in Safford, we had time to come back to a spot where Jeff had collected Epicauta phoenix back in July. We found quite a few (see photo) on plants nearby the original collection spot. Looking around more I found an Acmaeodera convicta perched on the tip of a shrub—first time I’ve collected this species! There were several species of tenebrionids crawling on the ground, perhaps prompted to activity by cooling temps as rain whipped up in the distance. I kept one eye on the skies and the other on the plants and eventually found two more A. convicta perched together on the same type of shrub just as rain began pelting my back. We made a quick dash back to the car and called an end to Day 1 in Arizona.
Day 2 –1.9 mi S Artesia, Arizona We started seeing Isocoma tenuisecta just coming into bloom as we headed south of town so stopped to see if we could find any Crossidius. I looked at a lot of plants before finding a single C. suturalis sitting on one of the non-blooming plants and in the meantime found one Trichodes peninsularis and a fair number of Zonitis dunniana on the flowers. Looking around on other plants, I found one large Chrysobothris sp. (not C. octocola, but longer and narrower) on the branch of a living Acacia constricta [Edit: this is C. knulli—a new one for me!] and one Acmaeodera disjuncta, several more Z. dunniana and T. peninsularis on flowers of Hymenothrix wislizeni. Finally, I did some sweeping of the bunch grasses in the area and got a nice series of what I presume to be Agrilus rubrovittatus—first time I’ve collected that species!
17.7 mi S Artesia, Arizona Another stop with both Isocoma tenuisecta and also Gutierrezia microcephala coming into bloom. We immediately began finding Crossidius pulchellus on the latter and eventually collected a good series of them and also Trichodes peninsularis off the plants When I returned to the first plant we had checked (in fullest flower), a Lampetis webbii landed on it right in front of me! I eventually found C. suturalis on Isocoma tenuisecta, as well as Trichodes sp. and a few C. pulchellus. There was a tall-stemmed malvaceous shrub off which I got a male/female pair of Tylosis maculata, and sweeping produced a couple more Agrilus rubronotata, a few more T. peninsularis, and one Acmaeodera scalaris. I saw a couple of Acmaeodera disjuncta on Baileya multiradiata flowers but missed them both!
1.1 mi N Rodeo, New Mexico We slipped just inside the New Mexico border to visit the area around the type locality of Crossidius hurdi. We found a spot where there were good stands of Isocoma tenuisecta along the roadsides and checked them out. Like the other spots today they were just starting to come into bloom, and rain had just moved through the area. We found perhaps 20 Crossidius individuals total, and honestly they were so variable that I don’t know whether they represent C. suturalis, C. hurdi, or both! [Edit: they are all C. suturalis] I also collected one Sphaenothecus bivittatus and several individuals each of three species of clerids on the flowers of these plants. A male Oncideres rhodosticta was found on the twig of Prosopis glandulosa, and I also found a cool meloid that I’ve never seen before—Megetra punctata!
Willcox Playa, Arizona We plan to visit Willcox Playa tomorrow (my inaugural visit!), but we had some time at the end of the day and decided to come take a look. There were some stands of Isocoma tenuisecta at the north end of the playa, and I found just a couple of Crossidius individuals on them, presumably C. suturalis, but it looks like they are bedding down for the evening. Also got a couple of Enoclerus sp. on the flowers.
Day 3 –8.4 mi SE Willcox, Arizona On our way towards the Chiricahua Mountains to see if we can find any Crossidius host plant stands. We found patches of Isocoma tenuisecta and Gutierrezia microcephala along Hwy 186 southeast of town—the former was just coming into bloom, but there were plenty of Acmaeodera (scalaris, disjuncta, and amplicollis) on the flowers, including on the unopened heads. We found perhaps a dozen Crossidius suturalis on them as well, and Jeff found one small female that looks like C, hurdi [Edit: it is C. suturalis]. I looked at a lot of Gutierrezia before finding a single C. pulchellus sitting on one of the plants. The same diversity of Acmaeodera as well as a few A. gibbula and T. peninsularis was also found on flowers of Hymenothrix wislizeni, and I took a series of about 10 specimens of what I looks like A. parkeri on flowers of what appears to be Stephanomeria pauciflora. There were also some tiny membracine treehoppers on a thorny shrub (maybe Condalia?) being tended by ants—both adults and young, and I collected a few of the adults.
Jct AZ-186 & AZ-181, Arizona After passing over a small range towards the Chiricahuas we didn’t see any Isocoma tenuisecta until we got to Hwy 181. There were some Baccharis sarothroides at the junction also, so we stopped and looked around. The Isocoma was just barely coming into bloom, but I found two Crossidius on them—one male C. suturalis and one small female that may be C. hurdi [Edit: nope, it is C. sururalis]. Heterotheca subaxillaris was in bloom abundantly, but there were no Acmaeodera on them and the area in general looked quite dry. I did find two A. decipiens on Sphaeralcea sp., and in the way back to the car I spotted a huge Lampetis webbii hanging on Ericameria nauseosa (which we’re not even close to blooming)—surely an incidental record.
4.1 mi SE Willcox, Arizona We came back towards town where things seemed to be further along and found stands of Isocoma tenuisecta in full bloom at the junction of Blue Sky Rd (a classic Arizona collecting locality). Crossidius suturalis were out in numbers on the flowers! Every now and then I got one that seemed too heavily maculated, making me think it could be C hurdi, but in the end I decided that all represented C. suturalis.
Willcox Playa, Arizona We went to the Playa to see if there were any tiger beetles to be had. I hiked to the edge of the Playa, and within a few minutes I saw a Cicindela pimeriana—just the second one I’ve encountered (the first was last night at gas station lights)! With that promise of more, I hiked the entire playa edge and never saw another one! I only saw one other tiger beetle—Cylindera lemniscata—seems I’m a bit late in the season for the Willcox Playa tiger beetles. Nevertheless, it’s a cool place and was fun to see. I’ll definitely be back during the summer, not just for here but for nearby Blue Sky Rd. Arriving back at the car, I did find one Moneilema sp. (I think M. appressum) on cholla. There were Crossidius suturalis abundant on the Isocoma tenuisecta, which, like the last spot, was in full bloom, but I’d gotten my fill of them at the previous spot and didn’t collect any.
Willcox, Arizona (epilogue) Collecting the insects from the field is only the beginning. Each night they must be processed for storage until they can be mounted once back in the lab.
Day 4 – Santa Rita Mountains, Box Canyon, Arizona We passed through Box Canyon on our way to Madera Canyon, so we decided to stop near the dry falls where last year I’d collected such a nice diversity of Acmaeodera spp. on flowers of Allionia incarnata. There was evidence of recent rain, and we found the patch nicely in bloom with four species (scalaris, decipiens, cazieri, and parkeri) on the flowers. Nearby in the wash before it crossed the road was a yellow composite (Xanthisma gracile), from which I collected the first three as well as gibbula, rubronotata, and disjuncta. Euphoria verticalis scarabs we’re flying plentifully around the flowers also—first time I’ve seen the species.
Flats below Madera Canyon, Arizona There are records of Deltaspis tumacacorii from Madera Canton at Proctor Rd collected on Croton, so we stopped by on our way south to give it a try. This seems to be a rather hard-to-find bug, so I didn’t have high expectations, and that’s a good thing because I didn’t see the beetle nor anything that even remotely resembled Croton. I ended up checking out the desert broom (Baccharis sarothroides) in the area on which I’d collected Stenaspis verticalisarizonensis and Tragidion spp. (also without high expectations). There were some interesting congregations of Euphoria leucographa feeding at sap flows on the stems and a few Stenaspis solitaria but otherwise litttle of note. I did find one Hippomelas planicauda hanger-on on a low fabaceous shrub (not Mimosa biuncifera), and inspecting the Gutierrezia microcephala plants revealed nothing but a single Acmaeodera rubronotata.
Madera Canyon Rd, Arizona We stopped real quick down the road on the way out of Madera Canyon because we saw stands of Isocoma tenuisecta, although they were still just shy of blooming. We looked at quite a few and found a single Crossidius suturalis—probably we are a tad early, and the area looks like it could use a good rain to pop things out and bring the Isocoma into bloom. We also saw low plants that could be the Croton that Deltaspis tumacacorii has been found on [Edit: I do not believe these are the plants, as they are too low]. Would be good to revisit this spot after a good rain!
Tumacacori Mountains, Walker Canyon, Arizona Our second shot at Deltaspis tumacacorii, which has also been taken in Walker Canyon. We found thick stands of knee-high flowers that we immediately took to be the Croton—just as described by our contact—on which the beetles have been taken. However, we quickly began doubting that ID and decided the plant must be some type of composite. That would make more sense from a host plant standpoint, as all known host plants for Crossidius spp. are composites (subsequently determined to be Pseudognaphalium leucocephalum, family Asteraceae). We looked at the dense stands for quite some time but didn’t see any beetles (or much of anything else) before deciding that we were probably too early—had the beetles already emerged we would have at least found some stragglers. I did take a few Acmaeodera on the flowers (scalaris and rubronotata), as well as a large cantharid (Chauliognathus profundus). I also took single A. amplicollis and A. rubronotata individuals off of a large helianthoid composite (Viguiera cordifolia) and one A. rubronotata on a small yellow composite (Xanthisma gracile). There were a multitude of darkling beetles crawling in the ground—in one spot I saw five individuals of several species all within a one-square foot area. We’ll have one more shot at D. tumacacorii tomorrow at Kitt Peak.
Day 5 –Pan Tak, Arizona (road to Kitt Peak) Today’s destination is Kitt Peak to look for Deltaspis tumacacorii and Acmaeodera resplendens, but at the entrance we saw some Isocoma tenuisecta just coming into bloom and decided to check it out. We found a half-dozen Crossidius suturalis but had to really work for them. Alliona incarnata was also nicely in bloom, but I got only one Acmaeodera parkeri? and one A. alicia off of the flowers. There was some Gutierrezia microcephala present, also not quite in bloom, off of which Jeff got a pair of C. suturalis and gave me one. Kinda dry but lots of flowers—wish there would have been more beetles coming to them.
Kitt Peak National Observatory, Arizona Our last chance to find Deltaspis tumacacorii, and I also got a tip that Acmaeodera resplendens has also been taken up here. We immediately found several species of Acmaeodera (amabilis, amplicollis, decipiens, and rubronotata) abundantly on several composite flowers—Heliomeris longifolia, Heterotheca fulcrata, Hymenothrix wrightii, Solidago velutina, and Gutierrezia microcephala, and I found a single A. solitaria on a pink malvaceous flower, but no A. resplendens. We also searched thoroughly for any Croton-like plant for D. tumacacorii but found nothing. The Kitt Peak records of that species are older than the Walker Canyon, Peña Blanca, and Madera Canyon records, and most of the records seem to be in August rather than September, so I suspect we are a bit late for both the species and its host plant. My plan at this point is to return sometime during the middle of August and enlist the help of the source of one of the recent records to accompany me.
Road to Kitt Peak, Arizona We had noticed Gutierrezia microcephala and some other yellow composites in bloom about halfway up the mountain on our way to Kitt Peak and decided then to stop and take a look around on the way down. I took “down” the mountain, Jeff took “up.” I hadn’t walked very far when I saw what I at first thought was the cantharid Chauliognathus profundus (which I had seen yesterday at Walker Canyon preying on another cantharid) on G. microcephala flowers, but something about it gave me pause—it was too cylindrical and robust. I leaned closer to get a better look and realized it was a cerambycid—one that I did not recognize, a beautiful orange color with black elytral apices and pronotal spots! I quickly grabbed it with my right hand, immediately saw another elsewhere on the bush and grabbed it with my left hand, and as I stood there trying to fumble a vial out of my pack to put them in I saw a third individual taking flight from the bush and spiraling into the air and out of reach! I shouted out to Jeff, who came down to where I was, and showed him what I’d found, and together we decided that it must be Mannophorus forreri—a very uncommonly encountered species and more than adequate consolation for not finding Deltaspis tumacacorii earlier in the day. We spent the next hour searching up and down the roadsides, and I ended up with two more individuals from Gutierrezia flowers and two from Heterotheca fulcrata. Jeff found an additional individual on flowers of Thelesperma sp. I also picked up a few black and white Enoclerus sp., one on flowers of G. microcephala and a mating pair on flowers of Acacia berlandieri. We have a long drive to California in front of us now, and it sure is good going into the drive with such a great find under our belts.
Day 6 – Cajon Pass, California Finally made it into California! Once we turned off the interstate, we made a quick stop to look at the roadside habitat where we spotted a good stand of Isocoma sp. in full bloom. We looked at quite a few plants but didn’t find any beetles on them. There were also good numbers of Ericameria nauseosa plants as well (host for Crossidius coralinus), but they weren’t quite yet in bloom yet and the only thing I found on them was a mating pair of Agrilus walsinghami. Moved on quickly to the next spot!
Lancaster, California We met up with Ron Alten and traveled to a classic “Crossidius” collecting site (up to four species have been taken there). We’d stopped at a couple of places on the way there but not found anything—either the host plants were not yet blooming or no beetles were found, so we had the feeling that we might be a week or two early. We had to drive into the habitat a ways before we started seeing host plants—in this case Ericameria nauseosa—but eventually we found a nice large area with the plants in full bloom. It didn’t take long before we found Crossidius coralinus (populations in this area are assigned to subspecies ascendens) on the blossoms. We worked the area for a couple of hours in the heat (97°F) and got a sufficient series for study with some individuals in ethanol for DNA analysis. Males exhibit quite a bit of variability in the degree of development of the elytral markings (thin to moderately expanded sutural marking), while females were quite consistently fully expanded. Males also outnumbered females by 3:1, and all of the individuals I collected were perfect and not damaged—both suggesting that the species is just beginning to emerge. Perhaps that is why we did not find individuals of the other species (mojavensis, suturalis, and testaceus). What I did find, however, was a small trachyderine cerambycid that none of us recognized! It was on the flowers of E. nauseosa—just like C. coralinus—and at first I thought it might be a small, aberrant C. coralinus, but the elytra are completely blue-black and the size was significantly smaller than the smallest C. coralinus male that we saw. I scanned BugGuide and didn’t find anything that matched, so this will have to remain a mystery for now. [Edit: I later determined this to be a heavily marked C. discoideus blandus. In the field I couldn’t see the orange laterals on the elytra.]
Day 7 –Santa Catalina Mountains, Mt. Lemmon, Arizona We decided we were just a bit to early for things in California and decided to come back to Arizona where we’d been having better success. I wanted to take another shot at Acmaeodera resplendens and had been told that Oracle Ridge Trail was a good locality for them, though maybe a bit late. We began seeing them soon after getting out of the car—unmistakable by their brilliant metallic green to copper color. They were not numerous, so I had to work for them and walked the trail about 2 miles out collecting them off a variety of flowers. The majority were on Bahia dissecta, and I also found occasional individuals of them and other species of Acmaeodera (amabilis, amplicollis, decipiens, and rubronotata) on flowers of Heliomeris longifolia, Heterotheca fulcrata, Hymenothrix wrightii, Ageratina herbarea, Achillea millefolium, sweeping, Cirsium sp., and prob. Viguiera dentata. One other beetle I found was a Megacyllene sp. sitting on a plant under a stand of Robinia neomexicana [Edit: this is M. snowi snowi—another new one for my collection!].
Scenic Overlook, Santa Catalina Mountains, Arizona A quick stop on the way back down the mountain at a spot where we’d seen Gutierrezia microcephala and Heterotheca subaxillaris blooming along the sides of the road. There wasn’t much going on—a couple of Acmaeodera amplicollis and one A. rubronotata on the flowers of H. subaxillaris, one Enoclerus sp. on Solidago velutina, one A. solitaria on Baccharis sarothroides, and another swept from grasses. I did see Peucetia viridans (green lynx spider) feeding on a very bristly tachinid fly.
Day 8 –Santa Rita Mountains, Montosa Canyon, Arizona (halfway up) We decided to visit Montosa Canyon to take another shot at Deltaspis tumacacorii and also see if maybe we could find more Acmaeodera resplendens. We didn’t see many flowers along the way up the canyon until about the halfway point. When we did start seeing them we made a quick stop to see what might be on them. I collected some of the more common Acmaeodera (rubronotata, decipiens, and amplicollis) off a few different yellow composite flowers, but we quickly decided to take a look at the higher elevations.
Santa Rita Mountains, Montosa Canyon, Arizona (entrance to Whipple Observatory) The road was gated past the km-13 point—Jeff took the roadsides, and I took a ridgetop trail off to the south for a little over a mile. The panoramic views were spectacular, and at the southern terminus I stood at the edge amidst gale-force winds admiring the landscape! Acmaeodera were diverse and abundant, though not quite as abundant as yesterday on Mt. Lemmon or a few days ago on Kitt Peak. However, I did get another nice series of A. resplendens, along with decipiens, rubronotata, amplicollis, and amabilis. Host flowers were collected for most of these: Hymenothrix wrightii, Erigeron neomexicanus, Linum neomexicanum, Heliomeris multiflora, Verbesina enselioides, Heliopsis parvifolia, Heterotheca subaxillaris, and Machaeranthera tanacetifolia. I also collected a small series of A. decipiens perching on grass stems and a very cool-looking wasp—black with a bright orange thorax and whitish abdominal apex [edit: I believe this is the scoliid Psorthaspis portiae].
Santa Rita Mountains, lower Montosa Canyon, Arizona We stopped at a spot near the bottom of the canyon on the way out to see what was going on at the lower elevations. The answer—not much! There were a variety of woody shrubs and other plants in bloom, but the area seemed rather “wilty”. I think this area has a lot of potential, we just didn’t hit it at the right time. I did take an impressively huge tarantula hawk, just because.
Flats below Montosa Canyon, Arizona I was a bit disappointed at not finding any beetles at what seemed would be the last collecting stop of the trip. But on our way out we saw a patch of Isocoma tenuisecta in bloom in the lowlands some distance west of the entrance to the canyon—just what we were looking for! Jeff and I each quickly found Crossidius suturalis individuals on flowers of the plants and continued searching up and down along the roadway. We didn’t find any more for awhile but when I got back to the area where I started I spotted another one sitting on a plant on the other side of the barbed-wire fence. I extended my net handle to the max, maneuvered it in position, took an assertive swipe, and got it. Just as I was putting it into the bottle, I saw another one take flight from a plant right beside me. I hadn’t closed the bottle yet but didn’t want the other one to get away, so I capped my thumb over the opening, awkwardly wielded my net into position one-handed, chased after it and took a swing and got it, too! (More often than not these situations end up with me losing both specimens!). There was also a good amount of Hymenothrix wislizeni along the roadside, off the flowers of which I collected several Acmaeodera gibbula, A. disjuncta, and A. rubronotata. This is probably the last collecting locality of the trip, so I’m happy to end up having success with this subspecies of Crossidius (C. suturalis intermedius), which we havn’t found in large numbers on this trip. Just after leaving the site, we saw a bobcat on the side of the road—my first one! Unusual to see one in the middle of the day—it was a small one, must’ve been quite hungry!
Phoenix, Arizona (epilogue) Bill Warner was kind enough to host Jeff and I for our last night in Arizona prior to returning home tomorrow. What an amazing collection he has built, and his use of flight-intercept traps in recent years has turned up even more amazing beetles. I was happy to also meet Andrew Johnston and Evan Waite, who joined us for dinner.
Hot on the heels of the previous installment in this series, I present the sixth “Collecting Trip iReport”; this one covering a trip to Arizona during July/August 2018 with Art Evans and—like the previous installments in this series—illustrated exclusively with iPhone photographs (see previous installments for 2013 Oklahoma, 2013 Great Basin, 2014 Great Plains, 2015 Texas, and 2018 New Mexico/Texas).
This trip was a reunion of sorts—not only had it been 20 years since I’d collected in Arizona, it had also been 20 years since I’d spent time in the field with Art Evans—which just happened to be in southeast Arizona! For years I looked forward to our next opportunity, and when he told me of his plans for an extended trip to take photographs of his forthcoming Beetles of the Western United States, I couldn’t pass up the chance. Art had already been out west for five weeks by the time I landed in Phoenix on July 28th, and together we drove to Cave Creek Canyon in the Chiricahua Mountains and spent the night before beginning a 7-day adventure in and around the “Sky Islands” of southeastern Arizona.
As with the recent New Mexico/Texas post, the material collected still has not been completely processed and curated, so I don’t have final numbers of taxa collected, but there were a number of species—some highly desirable—that I managed to find and collect for the first time, e.g., the buprestids Acmaeodera yuccavora, Agrilus restrictus, Agr. arizonicus, Chrysobothris chiricauhua, Mastogenius puncticollis, and Lampetis webbii and the cerambycids Tetraopes discoideus and Stenaspis verticalis. Who knows what as-yet-unrecognized goodies await my discovery in the still unprocessed material?!
Day 1 – Chiricahua Mountains, Cave Creek Canyon
After arriving at Cave Creek Ranch late last night, we awoke to some stunning views right outside our room!
The first buprestid of the trip was a series of Pachyschelus secedens on Desmodium near Stewart Campground. We beat the oaks and acacia along the way to Sunny Flat Campground but didn’t find much. Once we got near Sunny Flat I did some sweeping in an area with new growth of Helianthus sp. and got a series of Agrilus huachucae, a few lycids, and one Leptinotarsa rubiginosa. I beat one Acmaeodera cazieri from Acacia greggii and found another on flower of prickly poppy (Argemone sp.). On the roadside at Sunny Flat I found several Acmaeodera spp. on a yellow-flowered composite – one A. rubronotata, one A. solitaria(?), and three A. cazieri. Also collected one A. cazieri on a rain gauge, Mecas rotundicollis and one as yet undetermined acanthocinine cerambycid on miscellaneous foliage, one tiger beetle (Cicindela sedecimpunctata?) on the roadside, and two orange lycids in flight.
Desert flats east of Portal, Arizona
We came to this spot to look for Sphaerobothris ulkei on joint-fir (Ephedra trifurca), but after not finding any for awhile I got distracted by some big buprestids flying around. Caught several Hippomelas sphenicus, one Gyascutus caelatus, and two Acmaeodera gibbula on Acacia rigida, and the first and third were also on Prosopis glandulosa along with Plionoma suturalis. We finally found S. ulkei – searched the area for almost three hours, and Art and I each caught two and Margarethe caught one – also one each of P. suturalis and A. gibbula. I also got a mating pair of A. gibbula on Acacia greggii. After dinner, we went back and placed an ultraviolet light – checked it a couple hours later and got a nice series of Cylindera lemniscata and a few meloids (for Jeff).
Day 1 of the trip ended in typical monsoon fashion – heavy, thunderous rainstorms moved into the area during late afternoon, dimming prospects for blacklighting. Still, we set them up anyway at several spots and checked them later in the evening (flood waters preventing us from going to all the spots we wanted to). Not surprisingly, the one trap that yielded interesting specimens was in the lowest (warmest) area and received the least amount of rain. For me it was a nice series of Cylindera lemniscata.
Day 2 – Southwestern Research Station, Chiricahua Mountains, Arizona
There is a large stand of a narrow-leaved milkweed (Asclepias sp.) at the station, so we stopped by in our way up the mountain to check it for beetles. Got a nice little series of Tetraopes discoideus (tiny little guys!) on the stems as well as a few Rhopalophora meeskei, two Lycus spp., and one Pelonides humeralis on the flowers.
At the Southwestern Research Station with Barbara Roth, Art Evans, and Margarethe Brummermann.
Road from Southwestern Research Station to Ruster Park After leaving the SWRS on our way up to Rustler Park, we stopped to check a couple of bushes of New Mexico raspberry (Rubus neomexicanus). Margarethe thought there might be lepturines on the flowers, but instead we found a few Acmaeodera spp. and some Rhopalophora meeskei.
Further up the road we made another quick stop to check roadside flowers – just a single A. rubronotata on a yellow-flowered composite, but spectacular views of the valley below.
Gayle Nelson once told me about finding Chrysobothris chiricahuae on pine slash at Rustler Park, so I was pleased to see several fresh slash piles when we arrived. I saw a Chrysobothris (presumably this species) on the very first branch in the very first pile that I looked at, but I missed it (damn!) and didn’t see any more in that pile. However, in the next pile I visited I saw two and got them both. I looked at a third pile and didn’t see any, nor did I see any more on the two previous piles that I looked at. Still, two is better than none (assuming this is, indeed, what they are!).
Chiricahua National Monument
Not a bug collecting stop, but we wanted to drive into the monument and see the incredible rock formations which are best appreciated by driving through Bonita Canyon and then up to Massai Point. The unusual spires, columns, and balancing rocks are a result of erosion through vertical cracks in the compressed volcanic ash which was laid down in layers 25 million years ago and then uplifted. Tilting during uplift caused vertical fractures and slippage, into which water then worked its way to create today’s formations. One of the columns I saw is 143 feet tall and only 3 feet in diameter at one point near the base! Mexican jays were our constant, close companions as we hiked through the pinyon pine/oak/juniper woodland.
Vicinity Gleeson, Arizona
There is a wash across N Ghosttown Trail with stands of Baccharis sarothroides growing along the sides. Art previously collected a single Cotinis impia on one of the plants, so we came back to check them. We didn’t find any, but we did find two fine males and one female Trachyderes mandibularis on a couple of the plants. I also found a dead Polycestaaruensis.
Vicinity Tombstone, Arizona
Art saw Gyascutus caelatus here previously, so we came back and found them abundantly in sweet acacia (Acacia rigidula), which was in full bloom. They were extremely flighty and hard to catch, so we each got only four. I also collected one Stenaspis solitaria on the same and a Trachyderes mandibularis female in flight.
At another spot nearby, we stopped to look for Lampetus webbii, which Art had seen but not been able to collect when he was here a couple of weeks ago. We did not see any (but read on…), and I saw but did not collect a Trachyderes mandibularis and two Stenaspis solitaria. I also saw and photographed some giant mesquite bugs (Thasus neocalifornicus).
The day ended enjoying steaks, Malbec, and Jameson with two of the best hosts ever!
Day 3 – Box Canyon, Santa Rita Mountains, Arizona
Our first stop of the day was Box Canyon, a gorgeous, rugged canyon on the east side of the range. Mimosa dysocarpa was in bloom, off which I beat two Agrilus aeneocephalus, several Hippomelas planicauda, and one Stenaspis solitaria. Norm gave me an Acmaeodera cazieri that he’d collected on an unidentified yellow-flowered composite, and right afterwards I found some small, low-growing plants with purple flowers and sticky leaves (eventually ID’d as Allionia incarnata, or trailing four o’clock) to which Acmaeodera yuccavora and A. cazieri were flying in numbers. After that I crawled up top and beat the mesquites, getting one Chrysobothris sp., a mating pair of S. solitaria, and a couple of large clytrine leaf beetles.
Vicinity Duquesne, Arizona
We came here to look for Tetraopes skillmani (this is the type locality). We found the host plant (Sarcostemma sp.), but there were no beetles to be seen anywhere. Maybe another location nearby…
Patagonia Pass, Patagonia Mountains, Arizona We went up higher into the mountains to get into the oak woodland, where I hoped to find some of the harder-to-collect oak-associated Agrilus spp. Right away I beat one Agrilus restrictus off of Emory oak (Quercus emoryi), but no amount of beating produced anything more than a single Enoclerus sp.. I also beat the Arizona oak (Q. arizonica) and got only a single Macrosaigon sp. On Desmodium sp. I collected not only Pachyschelus secedens but a nice series of Agrilus arizonicus. For me it is the first time I’ve collected either A. restrictus and A. arizonicus, the former being quite uncommon as well, so all-in-all not a bad stop.
Sycamore Canyon, Santa Cruz Mountains, Arizona
We came here for night lighting, but while we still had light I did some sweeping in the low vegetation and collected a mixed series of Agrilus arizonicus (on Desmodium sp.) and Agrilus pulchellus – the latter a first for me, along with two small cerambyids that could be Anopliomorpha rinconia. Conditions were perfect (warm, humid, and no moon), and we had lots of lights (Art’s five LED units, Steve’s MV/UV combo setup, and my UV setup), but longhorned beetles were scarce – just one Prionus heroicus and one Lepturges sp. for me, and Steve got a few others including a nice Aegomorphus sp. I did also collect a few scarabs – Chrysina gloriosa and Strategus alous – because they’re just so irresistible!
Day 4 – Prologue One of the downsides (if you can call it that) of having great collecting is the need to take periodic “breaks” to process all the specimens and make my field containers available for even more specimens. Thanks to Steve and Norm for making their place available to Art and I so we can do this before heading out to our next set of localities.
Copper Canyon, Huachuca Mountains, Arizona
Copper Canyon is the classic spot for finding the charismatic Agrilus cavatus (see photo), but first we did some sweeping in the low vegetation near the parking area, where Norm got one Agrilus arizonicus and two Agrilus latifrons – and gave them to me! (Thanks, Norm!) I did some beating of the oaks, and after much work I ended up with a single Agrilaxia sp. and pogonocherine cerambycid on Emory oak (Quercus emoryi) and a couple of giant clytrines on the Arizona oak (Q. arizonicus). I then started sweeping the low-growing Acaciella angustissima – right away I got two A. cavatus. They were in the area past the cattle guard on the right where lots of dead stems were sticking up, and although I continued to sweep the plants more broadly in the area I never saw another one. Finally, Norm called me up to a small Mimosa dysocarpa near the car off which he collected three Agrilus elenorae – and gave them to me! (Thanks, Norm!) I gave the tree a tap and got one more, and in my last round of sweeping I came up with a Taphrocerus sp. (must be some sedges growing amongst the grasses).
Bear Canyon Crossing, Huachuca Mountains, Arizona
There was quite a bit of Mimosa dysocarpa in bloom along the roadsides on the west side of the Bear Canyon crossing, which I beat hoping to find some more Agrilus elenorae. I didn’t find any, but I did get several more Hippomelas planicauda, which is a nice consolation prize – and a great photo of the last one! Other than that I did a lot of sweeping and found only a single Acmaeodera cazieri.
Appleton-Whittell Research Ranch of the National Audubon Society, Elgin, Arizona
Cool temperatures and a blustery wind discouraged most insects from finding our blacklights. However, our blacklight did find some other interesting local residents. These two individuals could be the stripe-tailed scorpion, Paravaejovis (Hoffmannius) spinigerus, a common species in Arizona and southwestern New Mexico.
Day 5 – Miller Canyon Recreation Area, Huachuca Mountains, Arizona
There was a lot of Baccharis sarothroides growing in the lower canyon near the parking area, so I checked it all out hoping to find Tragidion annulatum. None were seen, and in fact there was very little insect life in general. I did pick up a couple of Acmaeodera solitaria by sweeping – not anything significant but the 15th species buprestid of the trip and found a dead Cotinis mutabilis, and Art got a nice series of Chalcolepidius click beetles on B. sarothroides and Prosopis glandulosa. Puzzling the lack of insect activity, given how green all the plants were and how fresh the growth looked. I guess we’ll have to look elsewhere.
Vicinity Naco, Arizona
We decided to try some desert thorn-scrub habitat so headed east towards Bisbee. Just north of Naco we saw some habitat where it had rained recently – everything was green with the sweet acacia (Acacia rigidula) and creosote (Larrea tridentata) in full bloom. Immediately out of the car I found a Dendrobias mandibularis on Baccharis sarothroides (and when I came back to it later I found a big, major male on it – see photos). On the sweet acacia we found a handful of Gyascutus caelatus (one of which I got a nice photo of), a mating pair of Sphaenothecus bivittatus, and a Cymatodera sp. Finally, out along the roadsides a riot of different yellow composites were in full bloom, including Heliomeris longifolia off which Art got a couple of Acmaeodera solitaria and I got two specimens of a large Acmaeodera sp. (blue-black with numerous small irregular yellow spots).
Vicinity Tombstone, Arizona
We decided to go back to the spot north of Tombstone where Art had earlier seen Lampetis webbii and give that species another shot. We looked at the Rhus sp. tree that he’d seen them on, and then we each followed the wash in opposite directions looking at the Rhus trees along them, which growing above the banks but never further away than about 25 feet. Along the way I collected several more Gyascutus caelatus on sweet acacia (Acacia rigida), which were more abundant this time than last and also easier to catch. After walking about 1/4-mile down the wash I saw something fly from a Rhus tree and land low on the bushes nearby. I quickly netted it, pulled it out, and was elated to see that it was, indeed, Lampetis webbii! I searched the Rhus in the area more carefully but didn’t find any more, then found some Rhus growing up along the road. At one point, I saw a large buprestid fly and land high in the top of another Rhus tree. I couldn’t tell for sure if it was L. webbii, but I extended my net as far as I could, positioned it beneath the beetle, and tapped the branch hoping it would fall in. Unfortunately, it flew away instead of dropping, so I can’t say for sure whether it was L. webbii or just a wayward G. caelatus. At any rate, L. webbii is yet another species that I have not collected before now and the 17th buprestid species of the trip.
Ramsey Canyon, Huachuca Mountains, Arizona
After returning from Tombstone, we visited Pat & Lisa Sullivan at their home at the end of Ramsey Canyon. Pat is a scarab collector who runs lights at his home nightly, and after a delicious dinner we spent the rest of the evening checking the lights. I was hoping to collect Prionus heroicus, and I got my wish. Also got Prionus californicus and several other non-cerambycid beetles such as Chrysina beyeri, C. gloriosa, Lucanus mazama, and Parabyrsopolis chihuahuae (the latter a first for me). I also placed a prionic acid lure (thanks Steve!) and got three more male P. heroicus. We also hunted around the rocks and roadsides hoping to find Amblycheila baroni but didn’t find any. Art did, however, find a female P. californicus and gave it to me (thanks!).