Three new species of the leafhopper subfamily Iassinae (Hemiptera: Cicadellidae) from China Author Wang, Xian-Yi Author Wu, Yun-Fei Author Dai, Ren-Huai text Zootaxa 2018 2018-07-03 4442 3 378 388 journal article 29755 10.11646/zootaxa.4442.3.2 b9169552-5ac7-45b7-b8d8-89f7d673f9a3 1175-5326 1303707 09379BA2-979C-41AC-8B04-28FDFB0AB91F Krisna quadrimaculosus sp. nov. Figs. 3, 6, 9 , 66–71. Description. Body length (including tegmina): ♂ , 10.5–11.5 mm . FIGURES 26–29. Siniassus hamulus sp. nov. 26. Subgenital plate and style, ventral view; 27. Pygofer, lateral view; 28. Aedeagus, ventral view; 29. Aedeagus, lateral view. FIGURES 30–36. Decliviassus species. 30. D bipunctatus (Dai, Dietrich & Zhang) , apex of aedeagus, ventral view; 31. D . bipunctatus (Dai, Dietrich & Zhang) , aedeagus, lateral view; 32. D . maculatus (Dai, Dietrich & Zhang) , style, lateral view; 33. D . nudus (Dai, Dietrich & Zhang) , style, lateral view; 34. D . nudus (Dai, Dietrich & Zhang) , aedeagus, lateral view; D . nudus (Dai, Dietrich & Zhang) , aedeagus, ventral view; 36. D . bipunctatus (Dai, Dietrich & Zhang) , aedeagus, style and connective, lateral view. General color green, fading to yellow in ethanol-preserved specimens ( Fig. 3 ). Crown with four black spots on anterior margin, two close to eye, other two near center. Eyes red, ocelli transparent. With dark spot close to the bucca of the antennal pits ( Figs. 6, 9 ). Crown slightly concave anteriorly with margin upturned. Crown median length 0.5 times interocular width. Clypeal suture prominent; frontoclypeus elongate, with two small black submedial spots; anteclypeus gradually widened from base to apex. Lorum broad, antennal ledges prominent. Male genitalia. Male pygofer side widened at middle, with many stout and fine setae on surface; ventral process short, constricted near middle then curved dorsad and widened before narrowing to sharp apex (Fig. 66). Eighth sternite with many fine setae, concave medially (Fig. 67). Subgenital plate slender, widest near midlength, outer margin with dense long, fine setae (Fig. 68). Style slender, distal part of apophysis nearly straight, apex slightly hooked (Fig. 69). Connective with median anterior lobe very short and acute (Fig. 69). Aedeagus with broad dorsal tumosity in lateral view, apex evenly rounded and relatively broad; in ventral view shaft nearly parellel-sided, only slightly widened beyond midlength, apex weakly bilobed (Figs. 70–71). Material examined. Holotype : ♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 18. VII. 2011 , collected by Long Jian-kun ; Paratype : 1 ♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 16. VII. 2011 , collected by Long Jian-kun ; 1 ♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 16. VII. 2011 , collected by Song Qiang-zhang ; 1 ♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 2. X. 2011 , collected by Song Qiang-zhang ; 3 ♂♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 17–20. VII. 2011 , collected by Zheng Wei-bin ; 1 ♂ , CHINA : Guizhou Province , Libo County , Maolan National Natural Reserve , 24. VIII. 2015 , collected by Zhan Hong-ping . FIGURES 37–42. Decliviassus sagittatus sp. nov. , 37. Pygofer, lateral view; 38. Subgenital plate and ventral pygofer appendage, ventral view; 39. Style, ventral view; 40. Connective, ventral view; 41. Aedeagus, lateral view; 42. Aedeagus, ventral view. FIGURES 43–65. Krisna species. 43. K . expansiva (Li & Wang) , connective ventral view; 44–45. K . rufimarginata (Cai & He) , pygofer ventral process, ventral view; 46. K . daiyunensis (Cai & He) , apex of aedeagus, caudal view; 47. K . daiyunensis (Cai & He) , pygofer ventral process, ventral view; 48. K . viraktamathi (Zhang & Dai) , pygofer ventral process, ventral view; 49. K . furcata (Zhang & Dai) , pygofer ventral process, ventral view; 50. K . viridula (Li & Wang) , pygofer ventral process, ventral view; 51. K . daiyunensis (Zhang & Dai) , aedeagus, lateral view; 52. K . furcata (Zhang & Dai) , aedeagus, lateral view; 53. K . viridula (Li & Wang) , aedeagus, lateral view; 54. K . viraktamathi (Zhang & Dai) , aedeagus, lateral view; 55. K . concava (Li & Wang) , aedeagus, lateral view; 56. K . yingjiangensis (Li & Wang) , aedeagus, lateral view; 57. K . furcata (Zhang & Dai) , aedeagus, caudal view; 58. K . expansive (Li & Wang) , aedeagus, ventral view; 59. K . daiyunensis (Zhang & Dai) , male eighth sternite, ventral view; 60. K . expansive (Li & Wang) , male eighth sternite, ventral view; 61. K . yingjiangensis (Li & Wang) , male eighth sternite, ventral view; 62. K . concava (Li & Wang) , male eighth sternite, ventral view; 63. K . nigromarginata (Cai & He) , pygophore, lateral view; 64. K . expansive (Li & Wang) , pygophore, lateral view; 65. K . yingjiangensis (Li & Wang) , pygophore, lateral view. Remarks. This new species is very similar to K . strigicollis ( Spinola, 1852 ) but differs in having four black spots (instead of two) on the anterior margin of the crown, the male pygofer process curved posterad (instead of dorsad) apically, and the aedeagus with the shaft slightly expanded (instead of tapered) apically in ventral view. Etymology. The new species name is derived from the Latin words “ quadri- ” and “ maculosus ”, referring to the four black spots on the anterior margin of the crown. Distribution. China ( Guizhou Provinces). FIGURES. 66–71. Krisna quadrimaculosus sp. nov. , 66. Pygofer, lateral view; 67. Male eighth sternite, ventral view; 68. Subgenital plate, ventral view; 69. Style and connective, ventral view; 70. Aedeagus, lateral view; 71. Aedeagus, ventral view.