"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
The Strawberry Bush is a rather new one for me. Steve and I found these plants, with freshly opened fruit capsules along the St. Francis River within Millstream Gardens CA this autumn. Rare due to loss of preferred habitat, this plant prefers moist, sandy soils along stream banks. Along with the St. Francois Mountain region, this plant also grows in extreme south-eastern Missouri.
Tonight I thought I’d share a male Long-horned Bee. These guys are very tricksy in getting a photograph as they never seem to stop moving. I haven’t been able to find them resting early in the day yet.
-OZB
This female Long-horned Bee is showing off her long tongue in this GIF I created.
While hunting for interesting arthropods to shoot this summer at the wetlands of SNR, I cam across a large number of younger Grey Treefrogs.
Some folks might get confused by the green coloration of the young Grey Treefrog, however this is likely due to the younger frogs being fond of denser vegetation.
-OZB
For today’s post I am presenting a few photos taken of a very common arachnid found in glades and drier forests of southern Missouri – the Striped Bark Scorpion. No, there is no reason to fear these secretive scorpions; they are only dangerous if you happen to be an arthropod smaller than they are. They are, however, much more common than I ever would have expected. Steve and I had much success finding them in the glades of Hughes Mountain Natural Area this past summer. Wait until the sun has well set, turn on your blacklight and walk around for a while. We were finding them easily every few steps.
The photo above shows what they look like to the naked eye (illuminated by flash). These guys are extremely fast as well as stealthy. The use of blacklight is almost mandatory to efficiently find them. These lights as well as a typical flashlight/torch brings all sorts of other arthropod visitors to the glade top as well.
So, why do they glow under ultraviolet light? This is an interesting question that has not yet been satisfactory answered by those who study these creatures. Hypothesis range from helping to attract prey, to aiding in their ability to see and sense light. I took the photo above soon after we watched this guy sprint approximately a meter towards us in the blink of an eye. At the time, Steve and I assumed it was a defensive run (or lunge) in reaction to us being near it. It was not until days later that I discovered what the real purpose of that dash had been…
Can you see what that reason was? Here’s a closer look…
Yes, I believe its dash was in capturing a prey – this small wolf spider – probably the only other predator that might be as common or more common than the scorpions themselves in this nocturnal food web.
Thanks for visiting…
OZB
In keeping with the flies, I thought I would share this photo of a Robberfly (Asilidae – Dioctriinae – Dioctria sp.) that we found and photographed at Shaw Nature Reserve this summer.
I find the flies to be one of the more interesting groups of insects and I was constantly on the lookout for new species to photograph this summer. There is such diversity in the flies, from size to form and function. There is still so much to learn about some flies, including some rather common species that researchers have still not described where or on what the larval forms live. To start, here is a closeup of a true giant of the flies, a Robber Fly (Family Asilidae). The Robberflies are true predators, with an intimidating beak that they use to inject neurotoxic and protein-dissolving cocktails.
The photograph above showcases a fly that should be a favorite of gardeners and farmers. Flies in this family (Tachinidae) parasitize a number of different insects and this species specializes in many of the plant-feeding true bugs like Stink Bugs and Leaf-footed Bugs. The generic name can be translated from Greek to mean “hairy foot” and the specific name “pennipes” means feather. This namesake feature can be seen on the rear legs of this fly in the photograph above.
The Thick-headed Flies are extremely interesting and a joy to watch. These guys not only mimic bees and wasps, but they also parasitize the hymenoptera by depositing their eggs on the stinging insect, sometimes attacking the host to place their egg. The eggs hatch and the larvae become internal parasites of their host.
The minuscule Bee Flies in the genus Geron parasitize moth caterpillars. The adults of these flies feed almost exclusively on yellow-flowered Asteraceae.
Don’t be threatened by the sting-like structure that this Scorpionfly (Family Panorpidae) has arched over its back. This is simply the male genitalia and is quite harmless. Scorpionflies primarily make a living by scavenging on dead insects, and like many flies, exhibit elaborate behaviors to attract mates. These flies will perform various dances in front of females and will often provide a ripe insect carcass as a prenuptial gift.
Finally, here is a rather different view of a Greenbottle Fly. I hope this helps to describe some of the fascinating diversity in form, function and behavior that can be found within the Diptera. These are but just a few of the easier to find and photograph! I hope to continue my exploration of these fascinating insects next year.
-OZB
Tonight’s post all share a theme of the challenges of being a pollinator on prairie wildflowers. The first photo above shows a lovely-colored, ambush predator known as a Crab Spider. Crab Spiders do not spin webs, but lay in wait, often on a flower for a pollinator to visit.
This Assassin Bug has captured a syrphid fly and is having himself a meal.
In the image above, this goldenrod flower came to life to ambush a Honeybee. I find that Honeybees are the most often caught in traps like this. Native bees seem to be constantly on the move and much more defensive, most likely due to the fact that they are solitary and there would be nobody to care for the brood if they were more care free like the honeybees.
The creature is actually called an Ambush Bug. What an interesting face this one has! I can imagine the potential conversation.
Finally, this gigantic Robberfly is finishing off some small prey.
Today I am sharing a few photos of Eastern Gama Grass (Tripsacum dactyloides), an interesting plant that grows in abundance at Shaw Nature Reserve. This warm-season grass has a C4 metabolism and can grow in a wide variety of habitats. Due to its use as a forage crop, man has introduced this perennial plant across the Americas. Gama Grass is a distant relative of maize, separating approximately 60,000 years ago. The inflorescence of the plant can be seen above. Whereas maize has its male and female flowers borne on separate spikes, Gama Grass carries its flowers on separate sections of the same terminal spikes. You can see the exposed anthers towards the upper 75% of the spike, while the developing seed are located in the lighter green sections nearest the stem. The photograph below shows a closeup of the exposed stigmas, waiting for the wind-borne pollen.
In the final image, you can see a grape vine using a Gama Grass spike for its support.
-OZB
A Thousand Acres of Silphiums 