Genus Zygoneura Meigen, 1830

Type species: Zygoneura sciarina Meigen, 1830

Diagnosis (Male) (Menzel & Mohrig 2000). Head: Eye bridge 3–5 facets wide. Flagellomeres bearing long setae, about 4.5 times as long as the flagellemere body. Forth flagellemere 2.8–3.5 times as long as wide, flagellemere neck extended, and 0.5–1.7 times as long as flagellemere body (Fig. 1 A, 2A, 3A). Palpus with two or three-segment, basal segment two setae and with no distinct sensory pit, 2nd segment short, 3rd segment elongate (Fig. 1 B, 2B, 3B). Thorax: Posterior pronotum mostly bare. Katepisternum wedge-shaped and extended. Scutellum with two setae. Tarsal claws toothed. Wings (Fig. 1 D, 2D, 3D): R1 short. M1, M2, and CuA 1 with no setae. M1 strongly bowed at base. Cu1-stiel short than bM. Haltere with 1–2 rows of setae. Terminalia: Ventral mesial margin of the gonocoxa with two groups of setae (Fig. 1 E, 2E, 3E). Gonostylus almost as long as gonocoxa, with 2–5 megasetae (Fig. 1 F, 2F, 3F).