Krisna furcata, Zhang, Yalin, Zhang, Xinmin & Dai, Wu, 2008

Zhang, Yalin, Zhang, Xinmin & Dai, Wu, 2008, Three new species of the genus Krisna Kirkaldy (Hemiptera: Cicadellidae: Iassinae) from China, with a checklist of the genus, Zootaxa 1783, pp. 40-60 : 47

Krisna furcata sp. nov.

( Figs 3 , 11 , 20 , 43–52 )

Yellow brown to fuscous, forewing with gray stripe along anterior margin of 3 subapical cells.

Crown short, with rounded anterior margin between eyes, medially slightly longer than next to eyes, anterior margin with distinct rim as in K. strigicollis . Ocellus situated on front margin of crown next to corresponding eye, separated from eye by distance equal to ocellus diameter. Male eighth sternite with hind margin slightly concave.

Male genitalia: Ventral pygophore process forked at apex, without small teeth and spicules, apical area of longer fork with few longitudinal rugae. Connective T-shaped with anterior margin medially produced. Subgenital plate with basal stem short. Style very long, apophysis long and narrow, slightly curved dorsally at apex without thickening. Aedeagus elongate, gradually narrowed to apex, curved dorsally near apex; more or less of uniform width in caudal view; phallotreme subapical on ventral surface.

Measurements: Male 9.6mm long, 2.7mm wide across eyes, 3.0mm wide across hind margin of pronotum.

Material examined: Holotype ɗ, China: Yunnan Prov., Xishuangbanna, Mengla, 870 m, 1 May 1974, Zhou Yao and Yuan Feng ( NWAFU).

Distribution: China (Yunnan).

Remarks: This species resembles Krisna viridula Li & Wang externally but can be distinguished from the latter by its smaller size, by the basal projection of the ventral pygophore process being longer than half the length of pygophore process and by the aedeagal shaft being symmetrical at apex.

Etymology. The name of this species refers to the forked ventral pygofer process.

Figures

FIGURES 1 – 8. Krisna dorsal habitus. 1. K. concava; 2. K. daiyunensis sp. nov.; 3. K. furcata sp. nov.; 4. K. nigromarginata; 5. K. rufimarginata; 6. K. strigicollis; 7. K. viraktamathi sp. nov.; 8. K. viridula.

FIGURES 9 – 16. Krisna lateral habitus. 9. K. concava; 10. K. daiyunensis sp. nov.; 11. K. furcata sp. nov.; 12. K. nigromarginata; 13. K. rufimarginata; 14. K. strigicollis; 15. K. viraktamathi sp. nov.; 16. K. viridula.

FIGURES 17 – 25. Krisna face. 17 - 18. K. concava (17. male; 18. female); 19. K. daiyunensis sp. nov.; 20. K. furcata sp. nov.; 21. K. nigromarginata; 22. K. rufimarginata; 23. K. strigicollis; 24. K. viraktamathi sp. nov.; 25. K. viridula.

FIGURES 43 – 52. Krisna furcata sp. nov. 43. Head and thorax, dorsal view; 44. Head and thorax, lateral view; 45. Pygophore, lateral view; 46. Apophysis of style, lateral view; 47. Aedeagus, caudal view; 48. Aedeagus, lateral view; 49. Pygofer ventral process, ventral view; 50. Subgenital plate, ventral view; 51. Connective; 52. Eighth sternite, ventral view.