The rotundipennis Group

The members of the rotundipennis group, which includes four species, are characterized by the face with lower margin slightly rounded; clypeus as a U-shaped sclerite; palpus short and clavate; M1 strongly arched, ending at or close to apex of wing; A1+CuA2 long and arched; r-m crossvein placed before middle of upper section of dm cell. Male terminalia with pregenital sclerite (syntergosternite 7+8) very narrow, membranous to slightly sclerotized dorsally, widened and distinctly sclerotized lateroventrally, and fused ventrally with the lateral margin of tergite 6; epandrium small, conspicuously convex, narrowed dorsally; surstylus articulated with the lateral extremity of epandrium or contiguous with epandrium; postgonites short; cercus membranous and setose. Female sternite 8 is large, subtriangular; tergite 8 narrowed; hypoproct with variable shape.

Geographical distribution: Brazil, Costa Rica.