Conopidae

Rather bare and elongate flies, 3.0-20.0 mm long, usually pruinose, and colored black and yellow, reddish brown, or blackish, often with striking resemblance to solitary wasps and other Hymenoptera. Head broad; proboscis usually long, singly or doubly geniculate. Wing spotted or unmarked, or with a band along costal margin; cell r4+5 closed or nearly so. (Smith & Peterson 1987)