Caterpillars of Digrammia continuata (curve-lined angle—family Geometridae) feed on plants in the family Cupressaceae (e.g., Chamaecyparis, Hesperocyparis, Juniperus, etc.) across North America and are colored to blend in perfectly with the foliage of their hosts. Adult moths also display a cryptic pattern of brown and gray transverse lines to blend seamlessly into bark and dead leaves when resting during the day. The caterpillar shown here was beaten from Juniperus virginiana (eastern red-cedar) during a Webster Groves Nature Study Society (WGNSS) Nature Photography Group outing at Victoria Glades Conservation Area in Jefferson Co., Missouri on 20 June 2026.
Digrammia continuata (curve-lined angle) on Juniperus virginiana (eastern red-cedar).
Lilium michiganense (Michigan lily—family Liliaceae) occurs in widely scattered counties across Missouri. It may be more common than generally realized, as plants often become overtopped by canopy and receive insufficient light for flowering. Overtopped plants can continue growing vegetatively for decades, but they blend in with surrounding vegetation and go undetected. This single flowering plant was found among numerous nonflowering plants in a riparian woodland during a Webster Groves Nature Study Society (WGNSS) Nature Photography Group outing at Victoria Glade Nature Preserve in Jefferson Co. on 20 June 2026.
Lying in the heart of the St. Francois Mountains, Johnson Mountain—like many of the other remnant peaks that form the core of this ancient volcanic system—features igneous glades on the rhyolite exposures at its summit and on its southwestern-facing slopes. While it has not been given any special wilderness designation within the Mark Twain National Forest, the U.S. Forest Service has restricted access in recent years due to increasing damage by ATVs and implemented management practices such as controlled burns to help restore these fragile glades to their presettlement extent and character. Thanks to WGNSS member Casey Galvan, who was able to gain access to these glades with the help of MDC Biologist Josh Wibbenmeyer, who ferried several members of the WGNSS Nature Photography Group up to the summit to explore its glades.
The burn a few years ago at the summit was “controlled” in name only—what had been open woodland extending down the southwest-facing slope was now oak/sumac scrub with numerous oak and pine cadavers standing starkly above the brush with tiny fragments of glade habitat on and around the larger rock exposures. It will take repeated burns and herbicide treatments to further reduce woody encroachment and allow expansion of grasses and forbs beyond their tiny toeholds.
Of course, as an entomologist—and one with special interest in beetles associated with woody plants at that, the cadavers dotting the landscape, many with the bark of their trunks loose and peeling, was an instant attention-getter. Navigating through the scrub on rocky ground was tricky, but I made it to one of the trees (Quercus stellata, post oak), peeled back a chunk of bark and saw two powderpost beetles (family Bostrichidae) belonging to the genus Lichenophanes. While there is a very common species in this genus in Missouri (Lichenophanes bicornis)—usually encountered at lights, these did not strike me as that species due to their smaller size and darker coloration, and photographing one of them at 2–2.5× revealed its true identity as the much less commonly encountered L. armiger. This species further differs from L. bicornis by its less distinctly raised elytral costae and tufts of setae raised and hair-like rather than flattened and scale-like. I have only encountered this species a few times, all at lights, so finding and photographing it in a more natural setting was a nice opportunity. While I photographed the individual, I also noticed a tiny red mite actively crawling about the surface of the beetle (seen at the base of the elytra in the photo below). This was likely not a parasitic mite, but rather a phonetic one—i.e., using the beetle only as a means of transport for its own dispersal.
Lichenophanesarmiger under loose trunk bark on trunk of dead Quercus stellata (post oak).
With one success already in hand, I immediately looked for other cadavers with bark to peel in search of beetles or other insects of interest. The second tree I approached seemed to just such, as I noticed a very tiny flat bug (family Aradidae) on the underside of the bark. However, as I positioned the lens over the subject, something about it didn’t look quite right, and zooming in closer revealed the bug, itself, to be a cadaver—partials remnants of a once-living individual that spent its last moments hunkered down under the loose bark. As often is the case when success come quickly, no amount of bark peeling over the next hour or so revealed beetles or other insects of any kind. With each fruitless effort, my attention increasingly wandered toward the foliage of other plants, and I eventually noticed a few patches of Solidago ulmifolia (elm-leaf goldenrod) beginning to bloom. Goldenrods are famously attractive to insects of many types, and the appearance of goldenrod in the landscape is a sure sign that summer has arrived in earnest. Most of the plants were in earlier stages of flowering, and insects observed visiting them were mostly the dreadfully pedestrian European honey bee (Apis mellifera). At one point, I noticed a few plants on which the flowers had not only peaked but were in early fruit development. While early-stage frutescences rarely attract pollinators, I noticed something on them anyway, and a closer look revealed them to be Missouri’s smallest representative of the family Coreidae (leaf-footed bugs), Merocoris distinctus. I don’t encounter this species very often—usually picking up an odd individual or two while sweeping herbaceous vegetation in high-quality prairies, so seeing half a dozen individuals congregating on a few plants was an unusual occurrence for me. Merocoris distinctus and its congeners in other areas are distinctive in their small size but chunky form and with the hind tibiae not expanded and flattened (thus, defying the family’s common name). Instead, their femora are robust and armed with small spines that once can imagine must serve some anti-predatory function. Their presence of fading flowers with developing fruits is logical, however, as members of this family are widely known to feed on the developing seeds and fruits of a variety of plants. Once again, I had the chance to photograph a seldom seen insect species engaging in natural behavior, and the presence of multiple individuals meant that I could continue my attempts with the skittish and flighty adults until, ultimately, I succeeded.
Merocoris distinctus on flower of Solidago ulmifolia (elm-leaf goldenrod).
After a couple of hours, we went back down the mountain a short distance to explore another glade that we’d seen on the way up. The core remnant was larger than what we’d seen up top due to the larger expanse of exposed rhyolite, and we immediately noticed one of the classic icons of igneous glades in Missouri—Trimerotropis saxitilis (lichen grasshopper). I’ve seen these beautiful grasshoppers—gorgeously cloaked in mottled green and black to match the lichen-encrusted rocks on which they sit—on numerous occasions, but I am nevertheless always tempted to photograph them whenever I see them and was preparing to do just that when Josh called out one of the only things that could surpass it in priority—tiger beetle! I knew it most likely was Cicindelidia rufiventris (red-bellied tiger beetle), and carefully approaching revealed this to be the case due to its dark dorsal surface but absence of a sutural row of spots on each elytron and slightly more gracile form that distinguish this species from its much more commonly encountered congener C. punctulata (punctured tiger beetle). This is another species that seems to prefer not only igneous glades but also the limestone/dolomite glades that dot the Ozark Highlands in the southern two-thirds of Missouri. I have photographed it on several occasions but nevertheless snapped a few shots while it gave a classic warm-day demonstration of thermoregulatory behaviors called “stilting” (standing tall on its front legs to raise its body above the thin layer of superheated air immediately above the rock) and “sun-facing” (facing directly toward the sun to minimize the amount of body area exposed to its direct rays).
Cicindelidia rufiventris (red-bellied tiger beetle) “stilting” and “sun-facing” on rhyolite exposure.
A 2-track leading from the glade led to what we hoped would be a renovated glade that was even more extensive, but despite the recent burns the area was still thickly choked with oak/sumac scrub that proved a challenge even to navigate, much less provide open space for glade-restricted plants and their insect associates. It was well past noon, so we regrouped to discuss our next move and decided to go in to town for lunch and then explore nearby Taum Sauk State Park. Casey had in the past mentioned a water pan where several interesting plants could be found, while I knew of a location where Platanthera ciliaris (yellow fringed orchid—the flowers of which are actually a beautiful shade of orange) should be getting close to flowering and that we could check their progress for planned photographs in the coming weeks. Striking stands of Liatris pycnostachya (prairie blazing star) greeted us at the parking lot and portended the even more dazzling displays that would see in many places throughout the park.
Liatris pycnostachya (prairie blazing star).
Our first foray was to the water pan near the high point, and even before reaching it the bright purple of the dense stand of L. pycnostachya colonizing it could be seen glowing through the forest understory. Despite having seen this plant in many places, primarily in prairies and along roadsides, I have never witnessed such a striking mass display of the flowers in peak bloom!
Liatris pycnostachya (prairie blazing star) in water pan atop igneous bedrock in dry oak/hickory forest.
Numerous butterflies flitted amongst the tall purple inflorescences gracefully swaying in the gentle beeezes, the largest and most conspicuous being Speyeria cybele (great spangled fritillary), Papilio troilus (spicebush swallowtail), and a strikingly fresh Papilio glaucus (tiger swallowtail) who danced tantalizingly close around the flowers as if inviting photographs.
Papilio glaucus (tiger swallowtail)
Liatris pycnostachya was not the only purple(ish)-flowered plant colonizing the water pan—Rhexia virginica (winged-stemmed meadow beauty), a denizen of moist acidic habitats, colonized the wetter areas of the water pan, its bright yellow, banana-shaped anthers contrasting nicely with its vivid purple-pink petals.
Rhexia virginica (winged-stemmed meadow beauty).
We then headed out in search of the stand of orchids (which I photographed in magnificent peak bloom last year in early August). Though more common in the southeastern U.S., in Missouri it is extremely rare, and finding the site entailed considerable off-trail bushwhacking to reach the site. At this time of year, before the plants have begun to bloom, we expected finding them would be quite difficult, but to our surprise we found numerous plants with inflorescences well developed and exhibiting tight buds. Some plants even were even beginning to develop color in the buds, and we found a single plant with two open flowers—surely among the earliest first-flower dates for the species in Missouri. Seeing this, we expect peak bloom in the next two to three weeks, and we plan to return to more fully photograph them in all their glory at that time.
Platanthera ciliaris (yellow fringed orchid).
We were able to enjoy slightly easier hiking back in the trail for a short time, during which we saw a robber fly (family Asilidae) posing nicely (and cooperatively) on a rock where David was able to photograph it. I tried to do the same, but it suddenly flew to a nearby stem where, fortunately, it settled back down and allowed me to get close enough for a few photos. The photographs enabled me to not only identify it as a female Efferia aestuans (northern hammertail) but also the reason for its relative cooperativeness—it had captured and was feeding on a much tinier fly!
Efferia aestuans (northern hammertail).
Our off trail adventures resumed quickly, however, when we decided to look for the endangered Asclepias meadii (Mead’s milkweed) in the open woodlands where it has been seen in the past. Hiking through the rough, igneous glades to get to the woodlands was itself difficult, and then searching the dense herbaceous layer of the woodlands for plants no longer in flower even more so. Ultimately, we were not successful in finding the plants, but our efforts were not unrewarded—dense stands of Phemeranthus calycinus (fame flower) with their charming hot-pink flowers daintily dotted the rhyolite exposures, and we saw several Cecropterus lyciades (hoary edge) skippers (family Hesperiidae) visiting the flowers of L. pycnostachya. This very uncommon butterfly resembles the much more commonly encountered Epargyreus clarus (silver-spotted skipper), but it is smaller and has a diffuse frosty spot reaching the edge of the hindwing. The vistas afforded from the glades at Taum Sauk are also among the best that I have seen in Missouri, especially when blazingstar is in full bloom.
Cecropterus lyciades (hoary edge) skippers on flowers of Liatris pycnostachya (prairie blazingstar).
By this time it was late afternoon, and we bushwhacked our way back to the trail. We had a difficult choice to make—turning right meant only about a mile of hiking back to the car; turning left meant having a chance to see the head of Mina Sauk Falls but perhaps closer to two even more difficult miles of hiking back to the car. We chose left! I can’t say it wasn’t worth it, because the chance to take the boots off and soak my legs in the cool water behind the shade of a large boulder was pure enjoyment, but two miles of rough hiking up the steep ascent felt like a Herculean effort—only the promise of water (and ice cream in town!) allowed me to keep the legs moving. Such times may be difficult in the moment but as memories become cherished. I’m already having fond memories of that final ascent!
St. Francois Mountains vista from igneous glades near Mina Sauk Falls.
March has been incredibly warm in the St. Louis area, particularly during the second half in which temperatures exceeded 80°F on seven of 12 days and 90°F twice! As one would expect, such unusually warm conditions played havoc with the first wave of early spring bloomers, particularly the conspicuously flowering understory trees that normally follow a predictable sequence of bloom beginning with Lindera benzoin (spicebush—family Lauraceae) in early to mid-March, Prunus mexicana/americana (Mexican/American plum—family Rosaceae) and Amelanchier arborea (common serviceberry—family Rosaceae) in mid- to late March, Sassafras albidum (sassafras —family Lauraceae) and Cercis canadensis (eastern redbud—family Fabaceae) in late March to early April, and — the zenith of native blooming understory trees — Cornus florida (flowering dogwood—family Cornaceae) in early to mid-April. Instead of a tightly choreographed sequence of mass blooms, we instead witnessed haphazard displays beginning earlier than normal and progressing sporadically throughout late March, with many trees knocked out of bloom by quite cold temperatures during several nights.
Nevertheless, it was not the disappointing displays of any of the above species that the group came to Little Lost Creek to see, but instead a much less commonly encountered understory tree with even less conspicuous blossoms—Dirca palustris (eastern leatherwood). One of only two Missouri representatives of the Family Thymelaeaceae, commonly called “stringbarks,” this species is found in scattered locations across the Missouri Ozarks and has been found reliably blooming in early April along Little Lost Creek.
WGNSS Botany Group at Little Lost Creek. Photo by Kathy Bildner.
To get to the low, moist areas where D. palustris grows, however, we needed to hike the two-track across the old fields and rather disturbed adjacent forests where some of the more typical spring-flowering trees were seen. Sassafras was perhaps the least impacted by the crazy spring temperature, with most trees reliably in bloom.
Sassafras albidum (sassafras). Photo by Ted MacRae.
Ever the entomologist, I couldn’t help examining some of the flowers more closely in search of insects, eventually finding the aptly-named Ischnomera ruficollis (red-necked false blister beetle—family Oedemeridae), a frequent visitor to a variety of flowers.
Photo 3. Ischnomera ruficollis (red-necked false blister beetle) on flowers of Sassafras albidum (sassafras). Photo by Ted MacRae.
The patch of American plum along the two-track that I have seen blooming profusely in years past and had hope to photograph was, disappointingly, well past bloom. However, a fine specimen that I take to be Mexican plum was found blooming profusely along a fence line nearer to the beginning of the two-track. Mexican and American plums can be difficult to distinguish, but the former usually grows as anindividual tree while the latter tends to form clonal thickets with multiple stems arising from a single parental plant.
Prunus mexicana (Mexican plum). Photo by Ted MacRae.
Serviceberry also should have been in bloom across the upland understory but was limited instead to just a few scattered trees still bearing flowers. One fine specimen, however, was found near the patch of American plum that was covered in near-perfect blossoms that simply begged to be photographed.
Amelanchier arborea (common serviceberry). Photo by Ted MacRae.
Veering into upland forests to approach the descent down into the valley, we saw some of the usual spring ephemerals and other plants that, despite not generally considered ephemerals, were nonetheless blooming quite early. Like the early-flowering trees, the spring ephemerals were impacted by the unusually warm March temperatures, with many of the species blooming far earlier than normal and now already fading despite the still-within-March date. Claytonia virginica (spring beauty—family Montiaceae, formerly Portulacaceae) is perhaps the best known ephemeral and, despite its commonness, is always a treat to see popping up in the woodlands after a long winter. The corolla color of this species is quite variable, with some being nearly white with barely perceptible venation, ranging to specimens with highly pronounced, vivid, pink venation.
Claytonia virginica (spring beauty). Photo by Ted MacRae.
Antennaria parlinii (Parlin’s pussytoes—family Asteraceae), normally an April/May bloomer, also was in flower in the relatively dry, rocky forests before the descent into the valley. Missouri populations of this species were previously known as A. plantaginifolia, means “leaves of Plantain” and indeed the basal leaves do look like those of the genus Plantago—a character that distinguishes them from the single-veined leaves of Missouri’s only other species in the genus, A. neglecta (field pussytoes).
Antennaria parlinii (Parlin’s pussytoes). Photo by Ted MacRae.
The descent into the valley is rather steep and precarious, especially for those of us who are “getting long in tooth” and needed to pick our way slowly down the rocky trail. The effort, however, was worth it as even before reaching the valley we began seeing leatherwood trees in bloom in the increasingly moist woodlands approaching the valley. The plants were, if anything, slightly past peak bloom, but not to the point that it made it difficult to find fresh examples of the instantly-recognizable flowers in clusters of 2–4 accompanying newly emerging leaves. More unusual than conspicuous with its small pendulous flowers surrounded by rusty woolly bracts, the species is distinguished from its even rarer congener, D. decipiens (upland leatherwood) by the small but discernible stalks and moist rather than upland habitat.
Dirca palustris (eastern leatherwood). Photo by Ted MacRae.
Several other botanical treasures awaited the group in the moist forests along Little Lost Creek besides leatherwood. One of these was very early blooming examples of Viola eriocarpa (smooth yellow violet—family Violaceae). This denizen of moist forests is often considered a smooth-leaved variety of V. pubescens (yellow violet) or even a synonym, and indeed the degree of “pubescentness” can be variable, making it sometimes difficult to distinguish a given plant.
Viola eriocarpa (smooth yellow violet). Photo by Kathy Bildner.
Another deep, moist, rich woods resident the group saw was the always-charming-to-see Collinsia verna (spring blue-eyed Mary—family Plantaginaceae). Unusually, this bona fide spring ephemeral is one of the few Missouri wildflowers that is truly “blue.” Equally unusual, its distribution is mainly in the Upper Midwest but in Missouri is apparently concentrated across the middle latitudes of the state.
Collinsia verna (spring blue-eyed Mary). Photo by Kathy Bildner.
[Warning: entomological geekery ahead!]
I, myself, missed these botanical finds due to my discovery immediately upon reaching the valley of a large oak tree with a dark, wet stain of flowing sap on its trunk that was hosting a variety of insects (remember; it is still March here—not normally a time to observe insects). Numerous muscoid flies, expectedly, congregated at the flow and lapped up the sap, as did a couple of brightly colored Vanessa atalanta (red admiral butterfly—family Nymphalidae). These fast-flying butterflies overwinter as adults and, thus, were ready to take advantage of the sudden warming spell. They also could have been difficult to photograph had their sweet tooth not enticed them to pose nicely on the dark, sap-saturated bark.
Vanessa atalanta (red admiral butterfly). Photo by Ted MacRae.
A closer look at the many insects congregating on the flow revealed the presence of two fireflies that proved to be Ellychnia corrusca (known as Photinus corruscus in some sources, e.g. iNaturalist) (winter firefly—family Lampyridae). Honestly, I didn’t recall ever having seen fireflies feeding on a sap flow, or for that matter any that were active in March—muggy summer nights are what I picture when I think of fireflies! The common name of this species, however, alludes to the fact that it can often be seen during warm days in winter, especially on tree trunks. Moreover, not only do adults become active in late winter, they mate at that time as well. The fact that these individuals were seen feeding on a sap flow is also unsurprising given that the species has been reported as a pest of sap buckets in the spring. There was one more surprise, however—as I was photographing the beetles, I noticed their all-dark abdomens, suggested they lack light-producing organs. This is surprisingly common among several groups of fireflies which have given up a crepuscular (i.e. active during dusk and/or dawn), luminescent lifestyle in favor of a diurnal (i.e., day active), non-luminescent existence. (We know that non- luminescent firefly species evolved from luminescent species—i.e., they used to be able to produce light and then lost the ability—rather than representing a lineage that evolved before other fireflies gained luminescent capabilities because their larvae do still posses light-producing organs.) Why did they do this? One possibility is the appearance of “femme fatale fireflies”—i.e., females of the genus Photuris that can that mimic the flash patterns of females in the genus Photinus to attract and eat Photinus males!
Ellychnia corrusca (winter firefly). Photo by Ted MacRae.
Non-luminescence as an antipredation strategy may be a good solution for femme fatales, but leading a diurnal existence still does not eliminate the risk of predation by other insects! One of the fireflies we saw on the sap flow had been attacked by a stink bug (family Pentatomidae) that came to the sap flow not for the sugary substance, but to prey on the other insects that it had attracted. For those of you who are asking “Aren’t stink bugs plant feeders?”, the answer is… mostly! While the majority of species use their piercing/sucking mouthparts to feed on developing seeds and fruits, there is one group of stinkbugs (the subfamily Asopinae) that has adapted its style of feeding to sucking the juices out of other insects rather than plants. This particular stinkbug was identified as Podisus maculiventris (spined soldier bug), and no amount of struggling by the firefly could release it from the stink bug, whose mouthparts had firmly impaled the firefly. Despite being predators, asopine stink bugs still lack chewing mouthparts and can only ingest liquid substances. This might be fine for sucking a juicy seed, but it falls short when trying to ingest another insect… unless it can digest the insect before it consumes it! This is called pre- or extra-oral digestion, whereby the stink bug injects its digestive enzyme-laden saliva into the prey and allows the enzymes to slowly liquify its innards. Once digested, the stink bug can then suck up thenutritious slurry, leaving only the shriveled external carcass of its hapless prey. Another such stink bug was seen elsewhere in the forest, this one preying on a fat, juicy caterpillar.
Podisus maculiventris (spined soldier bug) preying on Ellychnia corrusca (winter firefly). Photo by Ted MacRae.
For lunch, a smaller than usual crowd enjoyed authentic comida mexicana at Casa Tequila Cantina in nearby Warrenton.
Participants: Brenda Adams, Gisela Baner, Prem Barton, Renee Benage, Kathy Bildner, Tina Cheung, Wayne Clark, Sally Fabbri, June Jeffries, Shari Langer, Michael Laschober, Ted MacRae, Len Meier, Burt Noll, John Oliver, David Steinmeyer, Kathy Thiele, Elaine Wolshock, Matthew Wolshock, Richard Wolshock, and Laura Yates.
After several weeks of traveling to the outer reaches of the St. Louis area, the WGNSS Botany Group pinned their hopes on seeing good fall colors closer to home at Rockwoods Reservation in Wildwood. Despite its proximity to St. Louis, Rockwoods offers visitors a taste of the Ozarks with its mix of dry, rocky ridges, cool, moist ravines, and forested slopes featuring a variety of woodland types depending on substrate and exposure. Several trails are on offer, but the group chose the Rock Quarry Trail as the most likely to provide a diversity of plants and color.
Hard maples ablaze!
A large (seemingly misplaced) Taxodium distichum (bald cypress) tree right at the trail entrance captured our attention, and numerous globular cones, still green at this point in the season could be seen within its crown. Bald cypress trees are often attacked by a small fly called the cypress twig gall midge (Taxodiomyia cupressiananassa—family Cecidomyiidae) which produces globular galls on the twigs that can be mistaken for immature cones, but despite thorough searching none were found.
As we started up the rocky trail, John noticed several freshly fallen leaves on the ground under a large(ish) tree and picked one up for the day’s first “pop quiz.” Morus (mulberry) or Tilia (linden or basswood), two unrelated trees that bear similar-looking leaves, were the early guesses, but which? The shape of the leaf base—usually symmetrical in the former and asymmetrical in the latter—can be useful but is not consistent. A better way is to break the leaf petiole to check the color of the sap that exudes—milky in the former and clear in the latter. In this case, it was milky, identifying the tree as Morus rubra (red mulberry).
Our late summer and early fall this year was unusually dry with almost no rain from the beginning of August until near the end of October. This year’s fall floral display has suffered as a result, with many of the plants we are seeing in flower now looking rather pitiful compared to if they had grown under more favorable conditions. The recent rains may not have been enough to “save” the season, but the landscape has “perked up” a bit in their wake. By early November, Solidago (goldenrods) and Symphyotrichum (true asters) make up the bulk of the anticipated plants in flower, and we were fortunate to see blooms of several species in these two genera. These included not only some species that we have seen in the past weeks, such as Solidago ulmifolia (elm-leaved goldenrod), Symphyotrichum anomalum (many-rayed aster), Symphyotrichum patens (spreading aster), and Symphyotrichum lateriflorum (calico aster), but also a few that we have not.
The bulk of these were located in or near a small “glade” on a southwest-facing not far from the trail entrance. The patch of xeric habitat is not a true glade, but rather a scar of past quarrying activity on the southwest-facing limestone slope that has resulted in a glade-like habitat. It was here that a few patches of Solidago rugosa (rough-leaved or wrinkle-leaved goldenrod) were found. This species is similar to S. ulmifolia but usually has multiple stems and sessile leaves with the margins not as coarsely toothed and the veins more deeply impressed, giving the leaf a rugose appearance (on which the species name is based).
Solidago rugosa (wrinkleleaf or rough-stemmed goldenrod—family Asteraceae) inflorescence.
Solidago rugosa (wrinkleleaf or rough-stemmed goldenrod—family Asteraceae) leaves.
We have seen Symphyotrichum oblongifolium (aromatic aster) in true glades the past few weeks (at Victoria Glades and Fults Hill Prairie), and we saw it blooming in this “pseudo glade” as well. Amongst the several plants of this species, however, was a single blue-flowered aster that did not exhibit the same profusely branched and many-leaved growth. This turned out to be the slightly more conservative (CC = 7) Symphyotrichum laeve (smooth blue aster), identifiable by its smooth, completely hairless, narrowly elongate leaves that clasp the stem at the base.
Symphyotrichum laeve (smooth blue aster—family Asteraceae) flower.
Symphyotrichum laeve (smooth blue aster—family Asteraceae) stem and leaves.
Just beyond the glade and reentering the dry woodland, a single white-flowered aster was seen and determined to represent Symphyotrichum urophyllum (arrowleaf aster) based on its leaves—heart-shaped at the base and gradually becoming more arrowhead-shaped and sessile to nearly sessile further up the stem—and dense, cylindrical cluster of white flowers at the top of the plant.
Symphyotrichum urophyllum (arrowleaf aster—family Asteraceae) stem and leaf.
Moving further along the trail, the substrate transitioned from limestone to chert, which was accompanied by the appearance of more acid-loving lichens, mosses, and plants such as Vaccineum pallidum (lowbush blueberry) and Cunila origanoides (American dittany), a few plants of the latter still exhibiting blooms in good shape. The finely divided leaves of Viola pedata (bird’s foot violet), a characteristic occupant of upland forest openings having dry, cherty soils, were common along the steep trailside bank in this area.
Further up the trail along the ridgetop, we saw a single plant representing yet another acidophile and first sighting for the season—Solidago hispida (hairy goldenrod). This species can be recognized by its single stem, erect, narrow cluster of yellow flowers at the top of the plant, distinctly hairy leaves and stems (especially at the base), and larger basal leaves. It typically inhabits dry, open, and rocky woodlands, especially those with acidic substrates.
Solidago hispida (hairy goldenrod—family Asteraceae) upper stem leaves and inflorescence.
A long gentle descent off the ridge top took the group gradually down into a deep ravine with a tall, dense canopy that contrasted distinctly with the dry, rocky, more open forests seen to that point. Muted browns and yellows of oaks and hickories gave way to vibrant golds, oranges, and reds of hard maples. Polystichum acrostichoides (Christmas fern) was abundant on the north-facing slopes, the darkened tips of their fertile fronds conspicuous against the much more green rest of the plant, and two other fern species were noticed as well: Adiantum pedatum (northern maidenhair fern), a deciduous species with its fronds just starting to senesce, and Asplenium rhizophyllum (walking fern), an evergreen species that spreads vegetatively (“walks”) by rooting to form new plantlets whenever the tips of its long, undivided leaves touch moist substrate. Lindera benzoin (spicebush) was also abundant in the more mesic habitat now being traversed, their just-formed flower buds now sufficiently developed to distinguish male (larger buds) from female (smaller flower buds) plants at a glance.
Backlit leaves of Asimina triloba (pawpaw) under a canopy of blazing yellow Acer saccharum (sugar maple).
The trail ends up the road a ways from its start, requiring a short roadside walk to return to the parking lot. Despite the presence of asphalt, the group remained on the lookout for plants of interest in the now riparian forest corridor paralleling the road. A fourth goldenrod—Solidago altissima (tall goldenrod)—was seen (its identity confirmed by rubbing its leaves with the fingers to feel its roughness), but the biggest attention getter was a spectacularly large Ilex decidua (deciduous holly or possumhaw) bearing a profusion of bright orange-red berries.
After visiting Salt Lick Point Land & Water Preserve a few weeks ago, the WGNSS Botany Group continued its exploration of the Mississippi River bluffs in southern Illinois by visiting Fults Hill Prairie, a 532-acre preserve 13 miles south of Salt Lick Point. In addition to upland forests and glades, Fults Hill Prairie features the largest complex of high-quality loess hill prairie still existing in the state. This diversity of habitats correlates with a rich diversity of plants, which at this time of year is exemplified by the classic fall genera Solidago (goldenrods) and Symphyotrichum (true asters). While late October is a bit past peak bloom and the persistent precipitation that only began a few days earlier after an extraordinarily dry previous three months further dampened expectations, a decent-sized group of intrepid explorers nevertheless defied the forecast, steep wooden stairway, and slippery final ascent (along with the subsequent descent) to explore the area’s diversity and admire its bluff-top views.
View of the Mississippi River valley from Fults Hill Prairie Nature Preserve.
Some of the same goldenrods and asters that the group saw a few weeks ago at Salt Lick Point were again seen during the initial ascent. Among the more conservative of these were Solidago buckleyi (Buckley’s goldenrod), Solidago drummondii (cliff goldenrod), and Symphyotrichum anomalum (many-rayed aster). Less conservative (i.e., more commonly encountered) counterparts also were seen such as Solidago ulmifolia (elm-leaved goldenrod) and Symphyotrichum patens (spreading aster). In all cases, the plants exhibited precious few pitiful flowers due to the combination of late season and the drought-compromised display, but this didn’t prevent the group from practicing their identification skills based on non-floral characters.
Ascending the steep rocky slopes, the canopy was dominated by Quercus muhlenbergii (chinquapin oak)—an indicator of the thin, rocky soils underfoot. As the group continued to ascend, Quercus alba (white oak) also began to appear and eventually replaced Q. muhlenbergii as the dominant oak, signaling the presence of deeper deposits of the wind-blown loess soils that characterize the hilltops. Further up, on the south- and west-facing slopes at the top, such soils are unable to hold sufficient moisture to support the growth of trees. As a result, despite the presence of deep soils, the forest gives way to the first of two large hilltop prairie remnants featured in the preserve. A lone, Quercus stellata (post oak) stood sentry atop the prairie, adding to the diversity of oaks seen and framing a gorgeous view from the prairie across the valley below.
A lone Quercus stellata (post oak—family Fagaceae) stands sentry atop a loess hill prairie.
Entering the woodlands along a remnant 2-track belying the past presence of a farm, the group encountered a third species of blue-flowered aster whose cordate, scabrous leaves, pubescent stems, and distinctly winged leaf petioles identified it as Symphyotrichum drummondii (Drummond’s aster). This and another more commonly encountered aster, Symphyotrichum lateriflorum (calico aster), were found scattered along the sides of the 2-track until the group began its descent down into the second large loess prairie remnant.
Symphyotrichum drummondii (Drummond’s aster—family Asteraceae) leaf and petiole.
Also along the 2-track, but only in one small area, the group observed Sceptridium dissectum (cut-leaf grape fern, formerly Botrychium dissectum) in “flower” with mature fertile fronds. The finely divided leaves identified the plants as var. dissectum, which is a bit less common than var. obliquum.
Sceptridium dissectum var. dissectum (cutleaf grapefern—family Ophioglossaceae).
The diversity of oaks seen increased as the group traversed the forests along the 2-track, with Quercus velutina (black oak) becoming co-dominant with Q. alba. Numerous freshly-fallen twigs littered the 2-track due to the recent rains, and the shapes of some of the leaves seemed to suggest they might be from the more southerly Quercus falcata (southern red oak); however, careful examination of their lobes along with newly-formed buds and fully-developed acorns confirmed them, nevertheless, to be Q. velutina.
Still, the diversity observed oaks increased to five species when we began encountering Quercus shumardii (Shumard’s oak), including one particularly grand old tree whose spreading main branches and broadly-formed crown whispered stories about the more open conditions that must have occurred around it during its youth.
Nearby, a rusty farm implement, actively being engulfed by trees that sprouted after the last time it saw any movement, further attested to the area’s long-forgotten days as a farm.
Old farm implement taken over by trees.
The diversity of goldenrods seen also continued to tick upwards along the 2-track as we encountered what was either Solidago atltissima (tall goldenrod) or Solidago canadensis (Canadian goldenrod). These two species are difficult to distinguish, especially when the foliage is wet since leaf pubescence is a key distinguishing characteristic, but the upland habitat initially suggested the latter since S. altissima prefers more mesic habitats. A number of other more mesic-preferring plant species were also noticed in the area, however, perhaps a result of the underlying deep loess soils, so a final determination was not made. It was upon the final approach towards and down onto the second main loess prairie remnant, however, that the diversity of goldenrods and asters really began to skyrocket. Near the edge of the prairie but still in the forest, we saw Symphyotrichum oolentangiense (pronounced oh-OH-len-tang-ee-IN-say) (azure aster)—easily identifiable by its blue flowers and long, narrow, arrowhead-shaped lower leaves that are rough and sandpapery to the touch. At the prairie edge Symphyotrichum turbinellum (prairie aster), identifiable by its many-branched growth habit, elliptic leaves with tapered bases, and long vase-shaped involucres, began to appear. Symphyotrichum sericea (silky aster) further padded the diversity totals, a small patch of plants with their distinctive silvery leaves occupying the farthest (and possibly driest) extent of the loess prairie ridge before it began dropping precipitously towards the towering limestone blufftop.
Kathy, Michael, and John examine plants in a loess hill prairie.
The most dazzling addition to the diversity, however, was Solidago rigidiuscula (stiff-leaved showy goldenrod). Until recently considered to be a variety of Solidago speciosa (showy goldenrod), the large showy inflorescences of this species are every bit as attractive as the latter, but the plants feature narrower leaves, and while the flowers had largely faded by this late date, the lower foliage turning brilliant red provided stunning contrast with the still-green upper leaves and more muted colors of the surrounding vegetation.
The group then began its long, slow, careful descent off the prairie and through the lower woodlands back to the parking lot. Separating the two, however, is a limestone glade that features a slightly different flora of prairie-associated species than the hilltop prairie due to its thin, rocky versus deep loess soils, and it was in these glades where the group saw the day’s ninth and final species of aster—Symphyotrichum oblongifolium (aromatic aster), distinctive by its branched growth with numerous small leaves amongst normal-sized leaves (and if there is still any doubt, a quick crush-and-smell of the latter reveals its highly aromatic nature). A sixth and final goldenrod also was seen on the rocky slopes just below the glade—Solidago radula (rough goldenrod), its short, clump-like stature and densely numerous, heavily scabrous, serrate leaves confirming its identity.
As the lone entomologist in the group, I had been keeping my eye out for any insect activity—particularly Oncideres cingulata (twig girdler), a longhorned beetle (family Cerambycidae) that appears only during fall and “girdles” twigs of hickory and certain other trees before laying eggs in them. Numerous such twigs were seen, and I picked up several in hopes of finding females still upon them—unfortunately, to no avail. In fact, but a single insect was seen all day, and even it was not until I had returned to the parking lot—a nymph of the distinctively green Zelus luridus (pale green assassin bug).
Zelus luridus (pale green assassin bug—family Reduviidae) nymph.
L-R: Ted “BugMan” MacRae, Pete Kozich, David Seidensticker, “Ozark Bill” Duncan, Lisa Meihls, Chris Brown.
The Webster Groves Nature Study Society (WGNSS) Entomology Group began its final outing of the 2025 field season when eight participants (Chris Brown, Nathalie de Rocquigny, “Ozark Bill” Duncan, Jack Hambene, Pete Kozich, Ted “BugMan” MacRae, Lisa Meihls, and David Seidensticker) met up in the parking lot at Hughes Mountain Natural Area. Tucked into the southeastern corner of Washington Co., this gem of a natural area features 1.5 billion year old Precambrian outcrops that are among the oldest continuously exposed rocks in North America. Once molten as a result of volcanic activity associated with the St. Francois Mountains, the now hardened and weather-resistant rhyolite that formed after it cooled lies still exposed at the summit and surrounding areas. To the geologist, the polygonal columnar pattern of cracking at the summit—resulting in a unique formation called the “Devil’s Honeycomb”—might be the area’s most interesting feature. To the botanist, the xeric grasslands that formed on the surrounding exposures—i .e., “igneous glades”—might instead take this honor. To the entomologist, however, the unique fauna of insects associated with this interesting natural community earns top billing.
Rhyolite glade at Hughes Mountain Natural Area.
On two previous visits, the group has been fortunate to see one of Missouri’s rarest and most beautiful longhorned beetles—Tragidion coquus. Velvety black with vivid orange elytra, this charismatic species is usually seen during fall, and we hoped to be fortunate enough to see it again. Two species of fall tiger beetles—Cicindela limbalis (claybank tiger beetle) and Cicindela splendida (splendid tiger beetle), both colored iridescent green and brick red—were additional possibilities. A clear consensus quickly became apparent, however, when most participants voiced a desire to see Trimerotropis saxatilis—the famously and colorfully cryptic lichen grasshopper! It didn’t take long to see the first ones as soon as we began reaching the swathes of exposed rhyolite with their coverings of green and black lichens. Sitting motionless on the lichen-encrusted rocks, the grasshoppers were almost impossible to see, so perfectly colored and patterned was their camouflage.
The abundance of lichen grasshoppers on the glades was somewhat expected, but what was not was the diversity of other grasshoppers also present at the margins of the glades and in the surrounding dry woodlands. Four such species were documented, including Hippiscus ocelete (wrinkled grasshopper), Melanoplus ponderosus (ponderous spur-throat grasshopper), Melanoplus rusticus (obovate-winged grasshopper), and Spharagemon bolli (Boll’s grasshopper)—all possessing their own forms of cryptic coloration that made relocating them after they jumped difficult.
Two non-grasshopper orthopterans as well were found—several Scudderia furcata (fork-tailed bush katydid), ranging from green to tan to almost pinkish(!), were seen in the glades and woodlands, and an unusually cooperative Ceuthophilus sp. cave cricket (family Rhaphidophoridae) was also seen.
Scudderia furcata (fork-tailed bush katydid—family Tettigoniidae).
The group fanned out across the glades as they worked their way up towards the summit. Of special interest were flowers that might host pollinating insects (and possibly even T. coquus). Few flowers would be found, however—a consequence of abnormally dry conditions since late July, and we found ourselves looking for other targets. Ted managed to photograph a beautiful red-marked variegated meadowhawk dragonfly (Sympetrum corruptum), while David “captured” (through the viewfinder) a male black swallowtail butterfly (Papilio polyxenes).
Eventually the group reached the summit, where the “Devil’s Honeycomb” and a spectacular vista awaited us. An unexpected feature at the summit was white splotches on the tops of many of the projecting columns of rock, which the group surmised to indicate use of the summit as a roosting site by turkey vultures.
“Devil’s Honeycomb” at summit of Hughes Mountain.
The group lingered to take in the crisp air, blue skies, and spectacular view created by 1200’ of elevation before turning back to begin the descent back down the mountain.
Buford Mountain (2nd highest point in Missouri) in the distance.
Descending the mountain, however, did not mean an end of things to see. Even before getting off the summit, Lisa noticed Chelinidea vittiger (cactus leaffooted bug) on pads of Opuntia cespitosa (eastern prickly pear). This species feeds and develops almost exclusively on the pads, fruits, and young growth of prickly pear cacti (Opuntia spp.), thus, its range coincides with the distribution of these cacti.
Further down the mountain, another “variegated” species was seen—this time a variegated fritillary (Euptoieta claudia) butterfly. This well-worn individual was only the third butterfly species seen on the day, the aforementioned black swallowtail and a particularly fresh common buckeye (Junonia coenia) being the other two. This one was probably making its way south to overwinter in the southern U.S., where the species is a year-round resident.
Along the way, the lichen grasshoppers continued to attract our attention due to their abundance and striking diversity of coloration. We were treated to a particularly obvious example of this when we encountered a mating pair with the much smaller male exhibiting shades of brown instead of the greens exhibited by the much larger female.
It had been a leisurely descent off the main glade, and once clearing the woodland to emerge into the last glade fragments before the final descent, Chris and Ted were further delayed by a trio of observations in rapid succession. A large, impressively marked Neoscona crucifera (spotted orbweaver) spider hunkered down on a twig first caught Chris’ attention. Photographing it turned into an adventure when an effort to manipulate the twig on which it was resting ended up alarming the spider and causing it to drop down to the ground. They returned the spider to the twig using other twigs and leaves, but invariably it dropped again. Eventually, they learned they could “reel” the spider back up to the twig by its silk line if they acted quickly enough, and with repeated efforts both succeeded in getting photographs of the spider back up on the twig.
While this was going on, the unmistakable droning buzz of Milesia virginiensis (yellowjacket hover fly or Virginia flower fly) caught their attention. The resemblance of the adults of this species to wasps is remarkable, and they are often seen hovering in midair, making erratic shifting movements, and then suddenly flying away. This particular fly, however, cooperated by landing on a rock (briefly) and allowing a few photographs before it abruptly departed.
Spider and fly photographs in hand, Ted and Chris resumed their descent but took only a few steps before another sighting demanded photographs—a rough green tree snake (Opheodrys aestivus) peering quizzically from amongst the rust-red leaves of a stunted blackjack oak. The snake cooperated at first, allowing a few closeup photographs before making a run for it. Fortunately, this is a very docile species that rarely (if ever) bites when handled, so Chris and Ted were able to corral it for additional photos before returning it back to the tree from whence it came.
Opheodrys aestivus (rough green snake—family Colubridae).
At last, they were able to complete the descent and join the rest of the group in the parking lot, but not before making one last interesting find—the bizarrely beautiful caterpillar of Isa textula (crown slug moth). Like many members of the family Limacodidae (slug moths), the pale green, flattened caterpillars bear stinging spines/-in this case on lobes that radiate out from around the edge of the body. The caterpillar was found on the ground (it is probably mature and was looking for a protected place to spin a cocoon in which to spend the winter) and coaxed onto a leaf to bring it to the parking lot so everyone could have a chance to photograph it (it looked particularly stunning when set on a bright red sumac leaf).
6 Oct 2025—Fall continues to advance in the St. Louis area, and despite very dry conditions during the past two months the fall bloomers continue to make their appearance. One of the area’s most reliable and interesting places to see fall blooms is Victoria Glades south of Hillsboro, where orchids, gentians, and asters anchor a unique suite of fall-blooming plants that are rarely seen elsewhere in our mostly forested environs.
The group chose the Nature Conservancy portion of the complex to explore, as it was in the mesic forest along the riparian corridor below the glade on this side that the first of two orchids—the charmingly diminutive and seldom-seen Spiranthes ovalis (lesser ladies’ tresses)—was expected to be seen in bloom. Despite having recently taken GPS coordinates for the plants, it took several minutes of the group scouring the area around the coordinates before the tiny plants were finally found. Its delicate blooms, fall flowering season, small size, presence of basal and cauline leaves at anthesis, and preference for mesic habitats all serve to identify this species. Missouri’s populations are considered var. erostella, which lack certain essential flowering organs and are, thus, self-pollinated (cleistogamous).
Spiranthes ovalis var. erostellata (lesser ladies’ tresses—family Orchidaceae).
Clambering up and out of the creek bed and onto the open glade, the group found, again with some difficulty, the second orchid we were looking for—Spiranthes magnicamporum (Great Plains ladies’ tresses). Unlike S. ovalis, however, this species is much more commonly seen on dolomitic glades throughout the state, and there have been fall seasons at Victoria Glades featuring spectacular displays of it. Sadly, it does not appear that this will be one of those falls, almost surely because of the near absence of rain in recent months. The first two plants were found under and next to a cut eastern red-cedar, whose cadaver perhaps provided just enough protection to prevent a complete drying of the soil underneath and allowed the two plants to proceed to flowering. Of the nine species of Spiranthes presently known to occur in Missouri, S. magnicamporum is among the showiest due to its robust, often doubly helical inflorescences and relatively large flowers with spreading and arching lateral sepals. It is also among the most fragrant, with a sweetish fragrance of coumarin, which some people liken to vanilla.
I’ve been visiting Victoria Glades for more than 40 years, yet I continue to see things I haven’t previously notified. This time it was Trichostema coeruleum (pennyroyal bluecurls), a member of the mint family (Lamiaceae). [Note: Trichostema coeruleum was known until recently as Trichostema brachiatum—now a synonym of Trichostema dichotomum.] Unlike Trichostema dichotomum (bluecurls), which prefers glades and other dry habitats with acidic substrates (e.g., sandstone), T. coeruleum prefers such habitats with calcareous substrates (e.g., dolomite). A third species of the genus, Trichostema setaceum (narrow-leaf bluecurls), also occurs in Missouri but is restricted to sand prairies in extreme southeastern Missouri.
Dolomite glades are also the preferred habitat for many species of plants in the family Orobanchaceae, a bizarre family of mostly hemiparasitic plants that derive at least some of their nutrition not from the sun, but by tapping into the roots of nearby plants. Castilleja coccinea (scarlet paintbrush) is perhaps the best known of these, in most years joining the cacophony of wildflowers that form colorful displays across Victoria Glades during spring and early summer. There are, however, several less conspicuous but equally beautiful wildflowers in the family that are restricted in the area almost exclusively to the dolomite glades of Jefferson Co. One of these is Agalinis skinneriana (Skinner’s or pale gerardia/false foxglove), which the group found sporadically still in bloom across the open glade. There are several species of Agalinis in Missouri, some of which are quite common. However, A. skinneriana can usually be recognized by the characteristic habitat and generally upward-facing flowers with spreading to reflexed upper corolla lobes. The plants are also relatively slender and fewer-branched than the more common A. tenuifolia (common gerardia/false foxglove) and A. gattingeri (rough-stemmed gerardia/false foxglove).
Agalinis skinneriana (Skinner’s or pale gerardia/false foxglove—family Orobanchaceae).
Another plant in the family Orobanchaceae that the group saw was Buchnera americana (American bluehearts), represented by a single plant still bearing two worn blossoms. Normally blooming from June through September, plants in full bloom have no look-alikes and are not likely to be confused with anything else. Despite this, the vervain-like fruit-bearing structure of this late straggler fooled the group into at first thinking it was a species of Verbena until its true identity was realized.
Buchnera americana (American bluehearts—family Orobanchaceae).
No group of plants more iconically represents fall than goldenrods (genus Solidago) and true asters (genus Symphyotrichum), and no place allows as many uncommonly seen species to be seen together as the dolomite glades. Three species of goldenrods were seen during the day—the super common Solidago nemoralis (old field goldenrod), the less common but more showy Solidago rigida (stiff goldenrod), and the highly restricted Solidago gattingeri (Gattinger’s goldenrod) (we were not able to locate a fourth species—Solidago radula [rough goldenrod], which we have observed during previous visits on the MDC portion of Victoria Glades). It was the true asters, however, that truly tested our plant identification abilities. Relatively easier are the purple asters, of which we found three species. The first and most abundant was Symphyotrichum oblongifolium (aromatic aster), recognized by its recurved phyllaries and branched habit with narrow, linear leaves that become more numerous and smaller in the upper plant. If one is still in doubt as to its identity, however, one needs only to crush the leaves between the fingers and enjoy its distinct aroma.
Along the intermittent creek and near the interface with the dry post oak woodland on the north of the glade, we encountered a second species—Symphyotrichum oolentangiense (azure aster). Identification of this species came only near the end of the outing, as a key identifying characteristic of this species—the presence of distinctly petiolate cordate basal leaves that are rough to the touch—was not seen on any of the plants examined before then. At that point, we suspected Symphyotrichum turbinellum (prairie aster) due to the vase-shaped involucres. While that species has been found at Victoria Glades, it is usually a much more highly branched plant associated with more wooded habitats (despite the common name). Finally, we found a plant with such leaves present, albeit dried up, and then another with the leaves present and still fresh to confirm the identification.
Symphyotrichum oolentangiense (sky blue aster—family Asteraceae).
In a small area at the northernmost point of the glade, we found Symphyotrichum sericeum (silky aster). This species is immediately recognizable from afar by the silvery cast to the foliage—this, combined with its highly preferred habitat of glades or dry prairies are usually enough to identify the species, although it is said that the flowers are often more purple and less bluish than other “purple asters.”
As we walked the margins of the glade, the group kept their collective eyes out for Gentiana puberulenta (downy gentian), a striking and rarely seen fall flowering species that has been found on several occasions at Victoria Glades. The species has been seen at Victoria Glades on a few occasions in past years, and the locations of these sightings were scoured thoroughly but without success. Unexpectedly, near the end of the outing, a single plant in flower was located—its perfectly fresh blossom initially hidden from view underneath fallen leaves. One of three members of the genus Gentiana in Missouri, this species is easily differentiated by having the corolla spread open at maturity. Missouriplants.com notes “The rich, deep blue color of the corollas is a striking and uncommon hue among our flora.” A strikingly beautiful final find of the day indeed, and a perfect note on which to gather for lunch at historic Russell House in nearby Hillsboro.
For me, no botany outing is strictly about plants (just as no entomology outing is strictly about insects), so there were a few interesting insect observations on the day. On our way to look for Spiranthes ovalis (lesser ladies’ tresses), June noticed a caterpillar on the Ulmus rubra (slippery elm) that we decided must represent Halysidotus tessellaris banded tussock moth).
Later, after lunch with the group, I returned with the goal of more closely inspecting Physocarpus intermedius (Midwest ninebark) along the glade toeslopes and intermittent creek to see if Dicerca pugionata was out. It has been many years since I’ve seen this species in the fall (but it has also been many years since I’ve really tried to look for it during the fall). I started first with the plants along the moist toeslopes along the west side of the glade, checking several of the now very scraggly-looking plants without success. Along the way, I encountered an especially beautiful Spiranthes magnicamporum, so I paused to take photos. While doing so, I noticed a cryptically-colored crab spider on its blossoms—Mecaphesa asperata (northern crab spider)—the first time I’ve ever seen a spider hunting on the flowers of an orchid.
Mecaphesa asperata (northern crab spider—family Thomisidae) on flowers of Spiranthes magnicamporum (Great Plains ladies’ tresses).
Towards the end of the toeslopes, finally, two D. pugionata plopped onto my sheet. The plant they were on was near the far end of the toeslopes, and if I hadn’t seen any beetles by the time I reached the far end I would have given up the search. Finding them, however, motivated me to hike over to and continue looking along the intermittent creek, where I saw three more beetles in three different spots, the last one—satisfyingly—on the very last plant I checked before the creek disappears into denser woodland.
Dicerca pugionata (ninebark borer—family Buprestidae) beaten from living Physocarpus intermedius (Midwest ninebark).
Mission accomplished, I enjoyed one more leisurely stroll across the glade before calling it another (successful) day in the field.