Vermiophis, Yang, 1979

Li, Jia-Ling, Zhao, Can-Jun & Wang, Ji-Shen, 2024, Vermiophis cangshanensis sp. nov., a new wormlion fly from Yunnan, China, with notes on its immature stages and biology (Diptera: Vermileonidae), Zootaxa 5497 (3), pp. 400-408 : 406

Key to males of Vermiophis (modified from Nagatomi et al. 1999)

1. T9 with mid-posterior emargination transverse; ventral plane present............................................ 2

- T9 with mid-posterior emargination V-shaped; ventral plane absent.............................................. 4

2. T9 with ventral plane subtriangular; gonostylus tapering into pointed apex............. V. taihangensis Yang & Chen, 1993

- T9 with ventral plane subtrapezoidal; gonostylus with rounded lateral projection subapically......................... 3

3. Antennae with flagellomere shorter than preceding two combined; dorsomedial-posterior projection of fused gonocoxites present; gonostylus approximately 1.8 times as long as width......................... V. tibetensis Yang & Chen, 1987

- Antennae with last flagellomere longer than preceding two combined; dorsomedial-posterior projection of gonocoxites absent; gonostylus approximately 1.4 times as long as width...................................... V. cangshanensis sp. nov.

4. Gonocoxites with dorsomedial-posterior projection greatly enlarged and triangular; basal border of this projection distinctly demarcated from rest of gonocoxites.......................................... V. wudangensis Yang & Chen, 1986

- Gonocoxites with dorsomedial-posterior projection less developed without distinct demarcation....................... 5

5. Antennae with seven or eight flagellomeres; dorsomedial-posterior projection elongated and subacute apically........... 6

- Antennae with six flagellomeres; dorsomedial-posterior projection small and rounded apically........................ 7

6. Anterior part of ejaculatory apodeme greatly enlarged and rounded in lateral view............. V. ganquanensis Yang, 1979

- Anterior part of ejaculatory apodeme less enlarged and elliptical in lateral view........ V. minshanensis Yang & Chen, 1993

7. T9 with mid-posterior emargination wide; anterior part of ejaculatory apodeme greatly enlarged and rounded in lateral view........................................................................ V. yanshanensis Yang & Chen, 1993

- T9 with mid-posterior emargination narrow; anterior part of ejaculatory apodeme less enlarged and elliptical in lateral view.......................................................................... V. taishanensis Yang & Chen, 1993