Olbiogaster Osten Sacken

Olbiogaster Osten Sacken, 1886: 20 . Type species Rhyphus taeniatus Bellardi (designated by Coquillett 1910: 579).

Diagnosis. (Modified from Amorim & Tozoni 1994). Eye nearly bare; palpus with five segments; anepisternum and anepimeron with patches of fine setae, katepisternum bare, shiny. R 5 ending only slightly beyond wing apex; M 3 weaker than other posterior veins. Gonocoxites with patch of lateral setae, gonostyli slender, with setae on the outer face; sternite 10 bifid apically, with a pair of lateral projections, slender at base but apically enlarged.