The entirety of Myxosargus nigricormis‘ Wikipedia entry reads (at time of writing): “A species of soldier fly in the family Stratiomyidae.” INaturalist puts its range at most of the eastern United States (and of course Florida). Soldier flies in general are somewhat large and can look imposing (some mimic wasps), but they are usually harmless…
Tag: fly
Four-Spotted Aphid Fly
This lovely little syrphid fly, with the distinctive white spots on a dark abdomen, has a couple of common names: four-spotted hover fly, four-speckled aphid fly, and various combinations thereof. Its Latin name is Dioprosopa clavata. Its body shape and coloration somewhat mimic that of a wasp, but this fly is harmless to humans and…
Mexican Cactus Fly
This huge, imposing (and absolutely harmless to humans) big, black fly is the Mexican cactus fly (or Mexican flower fly), Copestylum mexicanum. It is named because the larvae feed on rotting cacti (and the adults, as you might guess from the above photo, visit flowers). This individual is about 13-15 mm long, a very big…
Dusky-Winged Hover Fly
This fantastic, big-eyed little alien — I really cannot overemphasize how funky this thing looks — is a dusky-winged hover fly, Ocyptamus fuscipennis, a harmless little syrphid fly. I tried to find something else to say about this species, but it’s another Wikipedia stub. Trying to describe “syrphid flies” as a whole gives me so…
Soldier Fly (Sargus fasciatus)
This large, strikingly-colored fly (metallic red/purple thorax, striped abdomen, white “racing” stripe and white spot between the eyes) is about 1 cm long. It’s one of many species of soldier flies, in the family Stratiomyidae. I wish I could say more about it, but here is the complete Wikipedia entry (other flies in the family…
Mantis Fly
Okay, technically, this is a shore fly, and it’s definitely a fly, not a mantis, but what else can you call this little dude? Meet Ochthera tuberculata, one of about 13 North American species, and 40 species worldwide, of “shore flies with raptorial forelegs”. (They’re not technically “mantis flies”, because that’s an entirely separate family…
Stilt-Legged Fly
Stilt-legged flies (in the family Micropezidae) make their living by pretending to be other insects — in this case, an ant. The forelegs of this stilt-legged fly (Taeniaptera trivittata) are bright white to attract attention, and the fly holds them out straight in front of it like the antennae of an ant. Other Micropezidae pretend…
Milbert’s Proctacanthus (Robber Fly)
I have a special love for this family of flies, who are all voracious, energetic predators (both as larvae and adults) and who all look like grumpy Muppet hobos. Robber flies in general tend to be large, with long legs, a long, tapered abdomen and a big, fluffy “beard” obscuring some pretty serious mouthparts. They…
Stiletto Fly
About the size of a house fly but unaccountably much longer in the abdomen, with long legs, and in color resembling a flesh fly (red eyes, black and white striped thorax, black and white striped abdomen), this is in fact a stiletto fly, Penniverpa festina. You’d think something this big would have more than a…
Love Bug
If you live in the Gulf Coast, especially Florida, you’ve heard of the “love bug” (Plecia nearctica). They are small, relatively inoffensive flies, but due to their habit of locking together during reproduction (causing the joined pair to fly very erratically and slowly right around bumper-level), during their most amorous times of year they seem…
Longlegged Fly
Technically, “longlegged fly” describes the family, not this individual species, but that’s the common name for Condylostylus longicornis. This small, iridescent green fly with red eyes is tiny — about 5mm (I need a better measurement, I describe everything as 5mm) — and fast! This individual really, really wanted to sit on that plant, but…
Drain Fly
These tiny “pests” — really harmless, nonbiting flies, but “pests” because they have no shame whatsoever in invading human bathrooms — seek water and dampness in drains, sewers, bathrooms, kitchens, and other human places. They can be annoying en masse — but I think they’re gorgeous singly and up close! Its wings are iridescent, look!…
Flesh Fly
This photo is most notable for the fly having been chilly enough (“winter” in Florida) that it held still for me to get within 3 inches and get a photograph. I cannot normally catch flies, so to speak, with my macro rig. The 108 genera, and 2500 species, of flesh flies eat carrion, dung, and…
Root Maggot Fly
This is one of those species where the scientific web sites say almost nothing, other than to argue over semantics and exactly who named the insect last, and the pest control sites have a lot to say. (What can I say, nobody seems to want to write a PhD thesis on small, feces-eating flies.) As…
Black Horse Fly
Anyone who has owned livestock will know this inch-long black fighter jet of a fly. Black horse flies (Tabanus atratus) are huge, loud, and persistent attackers of mammals in the females’ quest to get a blood meal in order to reproduce. They fear no swatter. A million years ago, I worked at a wolf sanctuary,…