Euhybus

Wang, Ning, Li, Zhu & Yang, Ding, 2013, Euhybus newly recorded from Tibet with descriptions of two new species (Diptera: Empidoidea, Hybotinae), Zootaxa 3686 (3), pp. 373-380 : 373-374

Key to species of Euhybus from China

1 Arista minutely pubescent; costal cell and anal lobe enlarged; hind tibia with 2–3 ad ( Figs 8, 9 )........................ 2

- Arista bare; costal cell and anal lobe not enlarged; hind tibia without dorsal setae ( Figs 1 , 2 )......................... 4

2 Thorax black; legs black except tarsomeres 1–2 dark yellow; hind femur at most twice as thick as mid femur ( Fig. 8)...... 3

- Thorax brownish yellow; legs dark brownish yellow except tarsomeres 3–5 dark brown; hind femur 2.5 times as thick as mid femur. Guangdong........................................................ E. sinensis Liu, Yang & Grootaert

3 Only mid tarsomeres 1–2 yellow; first flagellomere blackish; hind femur twice as thick as mid femur, with 2 preapical ad ( Fig. 8). Tibet........................................................................... E. nigritarsis sp. nov.

- Tarsomeres 1–2 on all legs dark yellow; first flagellomere dark brownish yellow; hind femur 1.5 times as thick as mid femur, with 3 preapical ad. Guangdong............................................. E. nanlingensis Ya n g & Grootaert

4 Mid tibia yellow; stigma short and rounded, about 1/6 as long as cell R1, not filling apex of cell r1 ( Figs 1 , 2 )............ 5

- Mid tibia black; stigma long, about 1/3 as long as cell R1, completely filling apex of cell r1. Guangdong................................................................................................. E. xui Yang & Grootaert

5 Fore and mid femora black with brownish yellow tips; hind tarsus entirely black; hind femur with 3 preapical ad ( Fig. 1 ). Tibet.................................................................................... E. longiseta sp. nov.

- All femora entirely black; hind tarsomeres 1–2 yellow; hind femur with 2 preapical ad. Taiwan................................................................................................... E. taiwanensis Liu, Li & Yang

Figures

FIGURE 1. Euhybus longiseta sp. nov., male adult. Scale bar = 1 mm.

FIGURE 2. Euhybus longiseta sp. nov., wing. Scale bar = 0.5 mm.

FIGURE 9. Euhybus nigritarsis sp. nov., wing. Scale bar = 0.5 mm.