Bradysiopsis

Mohrig, Werner & Kauschke, Ellen, 2016, New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part II. Genus Bradysiopsis Tuomikoski, 1960, Zootaxa 4154 (3), pp. 293-302 : 294-295

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 )

Figures

FIGURE 1. Bradysiopsis postvittigera sp. n. Holotype. A. Hypopygium, ventral view. B. Gonostylus, ventral view. C. 4 th flagellomere.

FIGURE 2. Bradysiopsis praevittata sp. n. Holotype. A. Part of the hypopygium, ventral view. B. Gonostylus (400 x). C. 4 th flagellomere. D. Apex of fore tibia.

FIGURE 3. Bradysiopsis praevittigera sp. n. Holotype. A. Gonostylus, ventral view. B. Flagellomeres 3 – 4. C. Wing.

FIGURE 4. Bradysiopsis subvittigera sp. n. Holotype. A. Part of the hypopygium, ventral view. B. 4 th flagellomere. C. Apex of fore tibia. D. Wing.

FIGURE 5. Bradysiopsis vittata (Meigen). Specimen from California. A. Part of the hypopygium, ventral view. B. 4 th flagellomere.

FIGURE 6. Bradysiopsis vittigera (Zetterstedt). Specimen from California. A. Part of the hypopygium, ventral view. B. 4 th flagellomere. C. Wing.