Subgenus Neocheilosia Barkalov, 1983

Remark

Subgeneric characters given by Barkalov (1983) are marked by an circumflex accent (^).

Diagnosis

Eye pilose^; frons swollen [especially so in the ♂]^; antennal fossa separated by a median process of lunule^; face haired only near eye marginv or bare; face and frons exceptionally wide^ [in most of the species]; ♀ frons: inner margin of lateral channel strongly arched anteriorly; anterior portion of scutum often with a pair of submedian pruinose vittae [non-vittate in the ♀ of C. barovskii]; dorsal and ventral katepisternal hair patch at least posteriorly confluent or only narrowly separated on lower one third of sclerite; vein M1 meeting vein R4+5 at an acute angle; membrane of wing beyond the veins dm-cu and M1 narrow; sclerites of distiphallus without ventral projections^; dorsal lobe of gonostylus rudimentary or missing; right and left surstyli and gonostyli (slightly) asymmetrical.