Subgenus Dicranomyia (Erostrata) Savchenko, 1976

Erostrata Savchenko in Savchenko & Krivolutskaya, 1976: 130 .

Type species: Dicranomyia globithorax Osten Sacken, 1869, by original designation.

Head (Figs. 1–2). With anterior part of vertex at narrowest point about 1/2 of width of eye, posterior part with longitudinal groove at middle; antenna relatively long, if bent backward, tip reaching just before or beyond wing base, scape nearly as long as pedicel, flagellomeres spherical at least basal half segments, distal ones slightly longer, each segment with verticils at most three times as long as width of segment; rostrum of head short, about 1/ 3 as long as eye, ventral margin ending above that of eye in lateral view; palpus one or two segmented, shorter than eye.

Thorax. Mesonotum strongly gibbous, about 1/2 as high as pleuron. Wing (Fig. 3) without stigma; vein Sc long, extending to about half length of Rs; R1 crossvein-like, ending in C at a right angle; cell dm closed. Legs with tarsomeres 3 and 4 slightly swollen.

Male genitalia (Figs. 4, 14, 20, 26, 29). Gonocoxite bearing ventromesal lobe; gonostylus single, with a small protuberance bearing one or two setae on outer surface near base.

Female ovipositor (Figs. 11, 17, 20, 32). Sternite 8 convex on middle of distal 2/3; furca (Figs. 13, 19, 25, 34) triangular in ventral view, directed posteriorly.