Key to the species of Bradysiopsis 1. Gonostylus bulbously on inner side in apical third, with 7–8 subapical spines and without longer whiplash-like bristles..... 2 - Gonostylus strongly pointed towards apex, with 2–4 subapical spines and a few long whiplash-like bristles.............. 3 2 Gonostylus long and thin, three times longer than wide................................. .. Br. vittata (Meigen) (Fig. 5) - Gonostylus at most twice as long as wide, broader in apical half........................... Br. praevittata sp. n. (Fig. 2) 3 Gonostylus short and compact, at most 1.5 times longer than wide, with 3–4 subapical spines.................................................................................................... Br. vittigera (Zetterstedt) (Fig. 6) - Gonostylus at least two times longer than wide.............................................................. 4 4 Gonostylus thin and nearly straight, with 2 subapical spines............................. Br. subvittigera sp. n. (Fig. 4) - Gonostylus curved in apical half, with 2–3 subapical spines.................................................... 5 5 Gonostylus with 2 equal subapical spines on small bases.............................. Br. praevittigera sp. n. (Fig. 3) - Gonostylus with 3 subapical spines, the lowest spine on larger base and distinctly curved.... .. Br. postvittigera sp. n. (Fig. 1)

Published as part of Mohrig, Werner & Kauschke, Ellen, 2016, New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part II. Genus Bradysiopsis Tuomikoski, 1960, pp. 293-302 in Zootaxa 4154 (3) on pages 294-295, DOI: 10.11646/zootaxa.4154.3.4, http://zenodo.org/record/260850