Scathophagidae

Slender, strongly to weakly setulose and sometimes densely hairy flies, usually black, gray, brown, or yellow, sometimes strikingly bicolored, usually subshining but sometimes densely gray to yellow pruinose. Wings usually hyaline, but sometimes with clouded crossveins, spots, or transverse bands. Male abdomen often enlarged apically. Length 3-11 mm. (Vockeroth 1987)