Svistella

He, Zhuqing, Li, Kai & Liu, Xianwei, 2009, A taxonomic study of the genus Svistella Gorochov (Orthoptera, Gryllidae, Trigonidiinae), Zootaxa 2288, pp. 61-67 : 61-62

Key to species of Svistella

1 Posterior femora without dark longitudinal band at the external side .......................................................................... 2

- Posterior femora with two dark longitudinal bands at external side............................................................................. 3

2 Inner tympanum smaller than outer one as in Fig. 2 ; wings wanting; genicular lobe of posterior femora with a short black line as in Fig. 3 ; male genitalia as in Figs. 5–6 ....................................................... Svistella tympanali s sp. nov.

- Inner and outer tympana almost equal; wings caudate; genicular lobe of posterior femur without black line; male genitalia as in Figs. 9–10 ................................................................................................................. Svistella rufonotata

3 Head with a black transverse band between the eyes; tegmina with blackish lateral field, male genitalia as in Figs. 12–13 .............................................................................................................................................. Svistella bifasciatum

- Head without a blackish transverse band; tegmina with yellowish lateral field........................................................... 4

4 Head and pronotum without reddish brown bands and spots; male genitalia as in Figs. 14–15 ............ Svistella dubia

- Head and pronotum with conspicuously reddish brown bands and spots .................................................................... 5

5 Posterior femora with two dark spots near apex; male genitalia as in Figs. 17–18........................................................ ........................................................................................................................................... Svistella anhuiensis sp. nov.

- Posterior femora without dark spots near apex; male genitalia as in Figs. 24–25 .......................................................... ................................................................................................................................................... Svistella fallax sp. nov.

Figures

FIGURES 1 – 6. Svistella tympanalis sp. nov. 1. body of male, dorsal view; 2. base of fore tibiae, lateral view; 3. apex of posterior femur; 4. subgenital plate of male, ventral view; 5. genitalia of male, dorsal view; 6. genitalia of male, ventral view.

FIGURES 7 – 10. Svistella rufonotata (Chopard, 1932). 7. apex of posterior femur, dorsal view; 8. subgenital plate of male, ventral view; 9. genitalia of male, dorsal view; 10. genitalia of male, ventral view.

FIGURES 14 – 15. Svistella dubia (Liu et Yin, 1994). 14. genitalia of male, dorsal view; 15. genitalia of male, ventral view.

FIGURES 19 – 25. Svistella anhuiensis sp. nov. 19. Body of male, dorsal view; 20. head, frontal view; 21. base of fore tibiae, lateral view; 22. apex of posterior fumur, dorsal view; 23. subgenital plate of male, ventral view; 24. genitalia of male, dorsal view; 25. genitalia of male, ventral view.