Diaphorus

Liu, Ruosi, Wang, Mengqing & Yang, Ding, 2015, Three new species of Diaphorus Meigen (Diptera: Dolichopodidae) from Tibet, Zootaxa 3946 (2), pp. 233-240 : 234

Key to species of Diaphorus from Tibet and the Himalayan area

1 Abdomen without yellow coloration...................................................................... 2

- Abdomen with yellow coloration........................................................................ 6

2 Fore tibia yellow; 4 dc.................................................................. D. hirsutipes Becker

- Fore tibia black; 5 dc.................................................................................. 3

3 Lateral epandrial lobe wide; cercus short, without ventral lobe ( Fig. 12 )........................ D. nigripedus sp. nov.

- Lateral epandrial lobe thin; cercus short, with ventral lobe.................................................... 4

4 Ventral lobe of surstylus thin and long, somewhat tapered at apex ( Fig. 11 ).................... D. longrenensis sp. nov.

- Ventral lobe of surstylus with wide apex and somewhat wide base, thin at middle................................... 5

5 St5 with cluster of bristles ( Fig. 1 )........................................................ D. anatoli Negrobov

- St5 without cluster of bristles ( Fig. 2 ).................................................... D. baheensis sp. nov.

6 Antennae completely black; hind coxa black..................................... D. xizangensis Yang & Grootaert

- Antennae partly yellow; hind coxa yellow................................................................. 7

7 Antennal scape mainly black, with orange-yellow coloration on inner ventral aspect................ D. sanguensis Hollis

- Antennal scape mainly yellow.......................................................................... 8

8 Antennal dicel and first flagellomere black.................................................... D. jeanae Hollis

- Antennal pedicel yellow, first flagellomere brown..................................... D. mandarinus Wiedemann

Figures

FIGURES 11 – 12. Genitalia, lateral view, (male). 11. Diaphorus longrenensis sp. nov.; 12. Diaphorus nigripedus sp. nov. Scale bars = 0.1 mm. Abbreviations: cer, cercus; epn, epandrium; dsur, dorsal lobe of surstylus; hyp, hypandrium; lel, lateral epandrial lobe; pg, postgonite; ph, phallus; vsur, ventral lobe of surstylus.

FIGURES 1 – 4. Habitus, lateral view (male). 1. Diaphorus anatoli; 2. Diaphorus baheensis sp. nov.; 3. Diaphorus longrenensis sp. nov.; 4. Diaphorus nigripedus sp. nov. Scale bars = 1 mm.