Riseveinus Li, 1995

Wang, Yang, Dietrich, Christopher H. & Zhang, Yalin, 2018, Four new species of the leafhopper genus Riseveinus Li (Hemiptera: Cicadellidae: Evacanthinae) from China and Thailand, Zootaxa 4508 (2), pp. 259-266 : 260

Key to species of Riseveinus Li, 1995 (males)

1. Head elongate, longer than combined length of pronotum and scutellum............................. R. albiveinus (Li)

- Head length less than or equal to combined length of pronotum and scutellum..................................... 2

2 Aedeagus without ventral process......................................................................... 3

- Aedeagus with ventral process........................................................................... 5

3 Aedeagus with small-spiculate lateral process ( Fig. 24 )......................................... R. spinatus sp. nov.

- Aedeagus without lateral process......................................................................... 4

4 Aedeagal shaft long and slender in lateral view, with pair of slender apical processes; dorsal apodeme with bilobed lateral extensions ( Figs 8, 9 )............................................................... R. cervcornutus sp. nov.

- Aedeagal shaft shaft broad at base, tapered to apex in lateral view, without pair of apical processes; dorsal apodeme with unpaired, bilobed, lamellate process, and asymmetrically curved process, longer than shaft, with compressed apex................................................................................ R. asymmetricus Zhang, Zhang & Wei

5. Aedeagus with unpaired ventral process................................................. R. baoshanensis Li & Li

- Aedeagus with pair of ventrolateral process................................................................. 6

6. Aedeagus ventrolateral process longer than aedeagal shaft..................................................... 7

- Aedeagus ventrolateral process shorter than aedeagal shaft..................................................... 8

7. Aedeagus with pair of slender apical processes.......................................... R. chiabaotawow (Huang)

- Aedeagus without pair of slender apical processes............................................. R. sinensis (Jacobi)

8. Aedeagus with pair of slender apical processes, anal tube without ventral process................................... 9

- Aedeagus without apical processes ( Fig. 15 ), anal tube with barblike ventral process ( Fig. 14 )............................................................................................................... R. hamatus sp. nov.

9. Aedeagus ventrolateral process stout, and well separated from aedeagal shaft in caudo-ventral view; shaft apex inflated in caudo-ventral view ( Fig. 33 )............................................................ R. tenuispinus sp. nov.

- Aedeagus ventrolateral process slender, and close to aedeagal shaft in caudo-ventral view; shaft with parallel sided in caudoventral view.............................................................. R. compressus Zhang, Zhang & Wei

Figures

FIGURES 18–26. Riseveinus Spinatus sp. nov.: 18. male habitus, dorsal view; 19. male habitus, lateral view; 20. male face; 21. female habitus, dorsal view; 22. female habitus, lateral view; 23. male pygofer, lateral view; 24. aedeagal, connective and style, ventral view; 25. aedeagal, lateral view; 26. subgenital plate, ventral view.

FIGURES 1–10. Riseveinus cervcornutus sp. nov.: 1. male habitus, dorsal view; 2. male habitus, lateral view; 3. male head and thorax, dorsal view; 4. male face; 5. male pygofer, lateral view; 6. male pygofer side, lateral view; 7. connective and style, ventral view; 8. aedeagal, ventral view; 9. aedeagal, lateral view; 10. subgenital plate, ventral view.

FIGURES 11–17. Riseveinus hamatus sp. nov.: 11. male habitus, dorsal view; 12. male habitus, lateral view; 13. male face; 14. male pygofer side, lateral view; 15. aedeagal, connective and style, ventral view; 16. aedeagal, lateral view; 17. subgenital plate, ventral view.

FIGURES 27–35. Riseveinus Tenuispinus sp. nov.: 27. male habitus, dorsal view; 28. male habitus, lateral view; 29. male head and thorax, dorsal view; 30. male face; 31. male pygofer side, lateral view; 32. aedeagal, connective and style, ventral view; 33. aedeagal, ventral view; 34. aedeagal, lateral view; 35. subgenital plate, ventral view.