Asilidae

The Asilidae are the robber fly family, also called assassin flies. They are powerfully built, bristly flies with a short, stout proboscis enclosing the sharp, sucking hypopharynx. The name "robber flies" reflects their expert predatory habits; they feed mainly or exclusively on other insects and, as a rule, they wait in ambush and catch their prey in flight.

==Overview== thumb|Zosteria sp. thumb|upright|A member of the Asilidae feeding on a grasshopper. This asilid shows the mystax and ocular fringe typical of the Asilidae, with short, stout proboscis and spiny, powerful legs, adapted to the capture of prey in flight. The Asilidae are a family in the order Diptera, the true flies. The common name for members of the family is robber flies, a name first suggested in 1869 by Alpheus Packard based on the German "Raubfliegen" (predatory flies). The Asilidae are cosmopolitan, with over 7000 described species. Latreille was the authority for establishing the family in 1802. The Asilidae, together with Bombyliidae and Therevidae, are the most representative families of the superfamily of Asiloidea and they form one of the most characteristic groups of the lower Brachycera.