Nomada bidentate group, back, Maryland, PG county

The genus Nomada includes many species with murky taxonomies. The group of species with an extra tooth off the tip (we call them the bidentate group) are particularly tricky with molecular working showing it to be a swarm of many "species". So it goes in insect land. Here is a bidentate specimen from Maryland, a female, you can see the bidentate tooth in the head shot. Photography Information: Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200. USGSBIML Photoshopping Technique: Note that we now have added using the burn tool at 50% opacity set to shadows to clean up the halos that bleed into the black background from "hot" color sections of the picture.