Hebecnema Schnabl, 1887

Wang, Yameng, Li, Wenliang, Li, Xin & Yang, Ding, 2023, Two new species of the subfamily Mydaeinae (Diptera: Muscidae) from China, Zootaxa 5318 (4), pp. 543-554 : 544-545

Key to Chinese species of genus Hebecnema Schnabl, 1887 (males)

The following key is mainly based on Xue et al. (2014), where 2 other species recorded in China ( H. occidentalisinica ( Feng, Shi & Li, 2005) and H. arcuatiabdomina ( Feng & Fan, 2001)) and one new species were included. Hebecnema halterata Stein, 1910 has been excluded due to paucity of information on some important characters.

1. Eyes bare........................................................................................... 2

- Eyes with hairs....................................................................................... 5

2. Abdominal sternite I bare............................................................................... 3

- Abdominal sternite I with setulae...................................................... H. xishuicum Feng, 2009

3. Abdomen dark black; basicosta black..................................................................... 4

- Abdomen dark yellow; basicosta yellow.................................... H. arcuatiabdomina ( Feng & Fan, 2001)

4. Calypters and halter yellow........................................................ H. vespertina (Fallén, 1823)

- Calypters and halter brownish clouded ( Fig. 3 ).................................. H. kongi Wang, Li & Yang , sp. nov.

5. Tibiae yellow to dark yellow............................................................................ 6

- Tibiae entirely black................................................................................... 8

6. Calypters yellowish white, not brown..................................................................... 7

- Calypters brownish clouded......................................................... H. fumosa (Meigen, 1826)

7. Eyes with short sparse hairs........................................... H. occidentalisinica ( Feng, Shi & Li, 2005)

- Eyes with long dense hairs............................................................ H. dasyopos Feng, 2009

8. Calypters light brown to brown.......................................................................... 9

- Calypters white......................................................................... H. alba Xue, 1983

9. Frons without orb .................................................................................... 10

- Frons with a pair of orb ............................................................. H. manasicus Feng, 2009

10. Eyes with sparse ciliae; ial 0+3.................................................... H. umbratica (Meigen, 1826)

- Eyes with dense ciliae; ial 0+2.......................................................................... 11

11. Arista short plumose; abdominal sternite Ⅰ with setulae.............................. H. coronata Feng & Wang, 2010

- Arista long plumose; abdominal sternite Ⅰ bare.......................................... H. invisifacies Feng, 2009

Figures

FIGURES 1–5. Hebecnema kongi Wang, Li & Yang, sp. nov. male. 1. head and thorax, dorsal view; 2. abdomen, dorsal view; 3. habitus, lateral view; 4. head, anterior view; 5. wing. Scale: 1mm.