Sphaeroceridae

General description: 

Small but rather robust flies, best diagnosed by the short, dilated hind basitarsus. Body 0.7-5.5 mm long, brown to blackish, sometimes with yellow, orange or reddish head, thorax, legs and/or markings on them; head, thorax and abdomen often with characteristic microtomentose pattern; wings only rarely spotted or legs variegated. (Marshall & Richards 1987, Roháček 1998)

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith