Ommatissus

Chang, Zhi-Min & Chen, Xiang-Sheng, 2014, Review of the planthopper genus Ommatissus Fieber (Hemiptera: Fulgoromorpha: Tropiduchidae) with descriptions of three new species from China, Zootaxa 3856 (2), pp. 241-252 : 243-244

Key to species of genus Ommatissus

1. Frons without dark spots................................................................................ 2

- Frons with distinct dark spots............................................................................ 3

2. Periandrium with two long processes which exceed length of aedeagus (see Asche & Wilson 1989: 139, Fig. 35 ).............................................................................................. O. bimaculatus Muir

- Periandrium without any process, ring-like (see Asche & Wilson 1989: 144, Fig. 52 ).................................................................................................. O. (Opatissus) vietnamicus Asche & Wilson

3. Frons with more than two dark markings, one pair next to vertex, other pair next to postclypeal suture.................. 4

- Frons with only one pair of dark markings next to vertex...................................................... 5

4. Frons with a pair of circle spots next to postclypeal suture (see Asche & Wilson 1989: 133, Figs 17, 18 ).............................................................................................. O. natalensis Asche & Wilson

- Frons with a pair of strip markings next to postclypeal suture ( Figs 12 , 47 )..................... O. trimaculatus sp. nov.

5. Processes of periandrium very long, reaching or surpassing to tip of aedeagus...................................... 6

- Processes of periandrium short, not reaching to tip of aedeagus................................................. 8

6. Processes of periandrium forming an inverse S; aedeagus forming an inverse S (see Asche & Wilson 1989:141, Figs 41, 43–44 )................................................................................ O. lofouensis Muir

- Processes of periandrium forming a bridge; aedeagus straight, tubular............................................ 7

7. Frons with a reverse pyriform dark patch next to vertex ( Fig. 15 ).................................. O. fuscus sp. nov.

- Frons with a pair of circle spots next to vertex ( Fig. 26 )........................................ O. lateralis sp. nov.

8. Periandrium with 3 caudad or ventrocaudad directed processes................................................. 9

- Periandrium with fewer than 3 caudad or ventrocaudad directed processes........................................ 11

9. Aedeagus without subapical tooth or spine................................................................. 10

- Aedeagus with distinct subapical ventral tooth (see Asche & Wilson 1989: 139, Fig. 40 )............. O. chinsanensis Muir

10. Aedeagus with end part fine, acerate and curved (see Asche 1994: 225, Figs 5–6 )................... O. bourgoini Asche

- Aedeagus with end part traverse and straight (see Asche & Wilson 1989: 144, Fig. 45 )............... O. lybicus Bergevin

11. Postclypeus dark brown, darker than frons, pale only vertically on midline.......................................12

- Postclypeus light brown not distinctly darker than frons...................................................... 13

12. Aedeagus not distinctly longer than anal tube, gonostyli apically rounded (see Asche & Wilson 1989: 139, Fig. 34 )........................................................................................... O. alpinus Linnavuori

- Aedeagus conspicuously longer than anal tube, gonostyli distally pointed (see Asche & Wilson 1989: 141, Fig. 42 ).................................................................................... O. kamerunus Asche & Wilson

13. Aedeagus straight, short, not exceeding anal tube; periandrium ventrally projected into an acute tip (see Asche & Wilson 1989: 144, Fig. 51 )...................................................................... O. tumidulus Linnavuori

- Aedeagus longer than anal tube, curved.................................................................. 14

14. Aedeagus about 1.3 times longer than anal tube, slightly curved dorsad (see Asche & Wilson 1989: 139, Figs 36–38 )............................................................................................ O. binotatus Fieber

- Aedeagus about 4 times longer than anal tube, strongly curved dorsad (see Asche & Wilson 1989: 144, Fig. 47 )........................................................................................ O. magribus Asche & Wilson

Figures

FIGURES 35 – 44. Ommatissus lofouensis Muir. 35. Head and thorax, dorsal view; 36. Same, lateral view; 37. Head, ventral view; 38. Forewing; 39. Hindwing; 40. Male genitalia, lateral view; 41. Pygofer and gonostyli, ventral view; 42. Same, dorsal view; 43. Anal segment and aedeagus, dorsal view; 44. Same, left side view. Scale bars = 1.0 mm (Figs 35 – 39), 0.5 mm (Figs 36 – 44).

FIGURES 45 – 55. Ommatissus trimaculatus sp. nov. 45. Head and thorax, dorsal view; 46. Same, lateral view; 47. Head, ventral view; 48. Forewing; 49. Hindwing; 50. Male genitalia, lateral view; 51. Pygofer and gonostyli, ventral view; 52. Same, dorsal view; 53. Anal segment, dorsal view; 54. Aedeagus, lateral view; 55. Same, dorsal view. Scale bars = 1.0 mm (Figs 45 – 49), 0.5 mm (Figs 50 – 55).

FIGURES 13 – 23. Ommatissus fuscus sp. nov. 13. Head and thorax, dorsal view; 14. Same, lateral view; 15. Head, ventral view; 16. Forewing; 17. Hindwing; 18. Male genitalia, lateral view; 19. Pygofer and gonostyli, ventral view; 20. Same, dorsal view; 21. Anal segment and aedeagus, dorsal view; 22. Same, right side view; 23. Aedeagus, dorsal view. Scale bars = 1.0 mm (Figs 13 – 17), 0.5 mm (Figs 18 – 23).

FIGURES 1 – 12. Dorsal and ventral habitus of Ommatissus species. 1 – 3. O. fuscus sp. nov.; 4 – 6. O. lateralis sp. nov.; 7 – 9. O. lofouensis Muir; 10 – 12. O. trimaculatus sp. nov.. Scale bars = 1 mm.

FIGURES 24 – 34. Ommatissus lateralis sp. nov. 24. Head and thorax, dorsal view; 25. Same, lateral view; 26. Head, ventral view; 27. Forewing; 28. Hindwing; 29. Male genitalia, lateral view; 30. Pygofer and gonostyli, ventral view; 31. Same, dorsal view; 32. Anal segment and aedeagus, dorsal view; 33. Same, left side view; 34. Aedeagus, dorsal view. Scale bars = 1.0 mm (Figs 24 – 28), 0.5 mm (Figs 29 – 34).