Wing membrane without macrotrichia. Palpi short, two-segmented. Face wide, about one-third of head width. Eyes of male relatively small, setose. Proboscis not distended. Laterotergites bare. All veins with setae. R5 runs very close to R1. RS base absent. M2 absent. M3+4 and CuA fork short. Middle and hind tibiae spurs almost equal in length. Tibial setulae forming more or less regular rows apically.