Triepeolus concavus, f, face, Pennington Co, South Dakota

Triepeolus concavus. Most Triepeolus bees are nest parasites of Melissodes, but a few interestingly have taken up with other groups of bees. This big one invades the nests of Svastra species...a group allied with Melissodes but a bit more robust and buff in their body. This one collected in Badlands National Park. One of many places on the Earth I consider as a favorite. 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.