Head: face concave beneath antenna, straight below median tubercle, with distinct median tubercle and smaller lateral tubercle; frontal prominence distinct, low, above middle of head; frontal triangle short, 1/2 as long as eye contiguity, slightly puffed out; front of female narrow, about twice as long as wide at antennal base, as long as face, with convergent sides dorsally, puffed out, with a transverse depression about 1/3 of frontal length above antenna, with short sublateral longitudinal depression extending about 1/3 the length of front above transverse depression. Eye pilose, holoptic in male. Antenna short, shorter than face; basoflagellomere elongate, twice as long as broad at base; arista plumose, as long as antenna.

Thorax: about as long as broad; notopleuron enlarged, swollen and elongate posteriorly on lateral 1/2; meso-anepisternum with anterior portion bare; meso-katepisternum with posterior 1/2 completely pilose; meso-anepimeron with posterior portion pilose; meropleuron with barrette pilose; with a patch of pile anterobasal to metathoracic spiracle; scutellum with a pre-apical depression, without ventral pile fringe. Wing: without microtrichia; marginal cell closed, petiolate, with apical portion angulate posteriorly; apical crossvein recessive.

Abdomen: suboval, convex, without bristles.