Arthroceras

About

Arthroceras is a genus of snipe flies in the family Rhagionidae. Species of the genus Arthroceras are mid-sized to large 4.5 to 13 millimetres, black, grey, or yellowish-colored flies that have a fairly long, tapering antenna consisting of 5–8 flagellomeres. Within the family Rhagonidae, some authorities place the genus in the subfamily Arthrocerinae, in which it is the only genus.

Summary from Wikipedia