Notes on the morphology of the robber flies (Diptera, Asilidae)

The position of antennae in the ventral part of head in the species of the genus Eremodromus Zimin is considered. It is different in the three species: the antennae are situated close to the mystacal bristles (E. noctivagus), distant from them (E. gracilis), and near the border between dorsal and ventral parts of head (E. zimini). All three species have reduced pulvilli. It is shown that both species of Theurgus Richter have a single straight apical anteroventral spur on the middle tibia.