Gergithus tessellatus Matsumura, 1916

Meng, Rui & Wang, Yinglun, 2012, Two new species of the genus Gergithus Stål (Hemiptera: Fulgoromorpha: Issidae) from China, with a redescription of G. bimaculatus Zhang and Che, and G. tessellatus Matsumura, Zootaxa 3247, pp. 1-18 : 17

Gergithus tessellatus Matsumura, 1916

( Figs. 65–73 )

Gergithus tessellatus Matsumura, 1916: 100 ; Kato, 1933: 4, P1.13.; Chan and Yang, 1994: 41, Fig.16 .

Material examined: 1 male, Wuyigong, Fujian Province, China, 26 June 1982, coll. Shicheng Qi; 1 female, Daanyuan, Fujian Province, China, 20 June 1981, coll. Shicheng Qi; 1 female, Baishanzu, Qingyuan County, Zhejiang Province, China, 1050 m, 24 July 1963, coll. Yintao Jin; 3 females, Xingcun, Chongan County, Fujian Province, China, 230-250 m, 2 June 1959, coll. Yintao Jin and Yangming Lin; 1 female, Daanyuan, Fujian Province, 7 July 1959, coll. Yintao Jin and Yangming Lin.

Remarks: In general, the tegmen of G. tessellatus is black with 10 green marks (faded to a yellow colour in dried specimens), arranged 1, 3, 4, 2 from base to apex by original description, but in our examination, the body colour and marks on the tegmen of some specimens have great variation: the tegmen may be black with some yellow spots joined with each other ( Figs. 65, 66 ), or the black tegmen may only have scattered yellow spots ( Figs. 68, 69 ), or the body may be dark brown with irregular stripes on the tegmen ( Figs. 71, 72 ). All of specimens examined have the same male genital characters except the features described above. We treat them as the same species here.

Figures

FIGURES 65 – 73 Gergithus tessellatus Matsumura, 1916 65, 68, 71. adult, dorsal view; 66, 69, 72. adult, lateral view; 67, 70, 73. frons and clypeus. Scale bars = 1 mm

FIGURES 7 – 18 Gergithus nonomaculatus sp. nov. 7. male anal tube, dorsal view; 8. capitulum, dorsal view; 9. gonoplac, dorsal view; 10. female anal tube, dorsal view; 11. gonapophyses IX and gonaspiculum bridge, right view; 12. gonapophyses IX, dorsal view; 13. gonocoxa VIII and gonapophysis VIII, ventral view; 14. gonocoxa VIII and gonapophysis VIII, left view; 15. gonoplac, left view; 16. apex of aedeagus, ventral view; 17. aedeagus, left view; 18. male genitalia, left view. Scale bars = 0.5 mm