Andixius, Emeljanov & Hayashi, 2007

Wang, Xiaoya, Zhi, Yan & Chen, Xiangsheng, 2020, Key to species of the genus Andixius Emeljanov & Hayashi (Hemiptera Fulgoromorpha: Cixiidae) with descriptions of two new species, Zootaxa 4802 (3), pp. 440-448 : 441

Key to species of Andixius (males), modified from Zhi et al. (2018)

1. Periandrium with an expanded semi-enclosed structure around the left side and ventral margin of periandrium ( Zhi et al. 2018: Figs 25–28 )................................................................................. A. trifurcus

-. Periandrium without expanded semi-enclosed structure....................................................... 2

2. Left side of periandrium with a bifurcate process ( Emeljanov and Hayashi 2007: Figs 11–13 ).................. A. nupta

-. Left side of periandrium without process or process on left side of periandrium not bifurcated........................ 3

3. Endosoma of aedeagus with a short and small spinose process apically ( Figs 31–34 )................ A. lingulatus sp. nov.

-. Endosoma of aedeagus with a long spinose process basically.................................................. 4

4. Ventral margin of periandrium with a projection, of which basal 1/3 longitudinally and distal 2/3 horizontally extended, endo- soma with two “simple” processes, not bifurcate ( Zhi et al. 2018: Figs 13–16 )......................... A. longispinus

-. Periandrium without the above spinose process............................................................. 5

5. Right side of endosoma with a large bifurcate process (Hsu and Stalle 1991: Figs 33 D–F)................... A. venustus

-. Right side of endosoma without a large bifurcate process, ventral margin of periandrium with a blade-shaped spinose process ( Figs 10–13 ).......................................................................... A. cultratus sp. nov.

Figures

FIGURES 22–34. Andixius lingulatus sp. nov., male 22. Dorsal view; 23. Lateral view; 24. Head and thorax, dorsal view; 25. Face, ventral view; 26. Forewing; 27. Genitalia, lateral view; 28. Pygofer and gonostyli, ventral view; 29. Anal segment, dorsal view; 30. Gonostyli, lateral view; 31. Aedeagus, right side; 32. Aedeagus, left side; 33. Aedeagus, dorsal view; 34. Aedeagus, ventral view. Scale bars: 0.5 mm (22–25, 27–34); 1.0 mm (26).

FIGURES 1–13. Andixius cultratus sp. nov., male 1. Dorsal view; 2. Lateral view; 3. Head and thorax, dorsal view; 4. Face, ventral view; 5. Forewing; 6. Genitalia, lateral view; 7. Pygofer and gonostyli, ventral view; 8. Anal segment, dorsal view; 9. Gonostyli, lateral view; 10.Aedeagus, right side; 11. Aedeagus, left side; 12. Aedeagus, dorsal view; 13.Aedeagus, ventral view. Scale bars: 0.5 mm (1–4, 6–13); 1.0 mm (5).