Thagria webbi Fan & Li

Fan, Zhi-Hua, Li, Zi-Zhong & Dai, Ren-Huai, 2015, Taxonomic study of the leafhopper genus Thagria Melichar (Hemiptera: Cicadellidae: Coelidiinae) from Guangxi, China, Zootaxa 3918 (4), pp. 451-491 : 467-468

Thagria webbi Fan & Li sp. nov.

( Figs. 259–268 )

Description. Body length of male 6.8–7.0 mm, female 7.5–8.0 mm.

Body slender, medium sized ( Fig. 259 ). Crown ivory yellow; ocelli and eyes brown ( Fig. 261 ). Face ivory, except distal portion of clypeus and middle of clypellus light brown ( Fig. 262 ). Pronotum brown, densely covered with light brown nubs ( Fig. 261 ). Mesonotum yellow, with basal angles brown ( Fig. 261 ). Forewing brown to black, with transparent patches, venation light brown to dark ( Figs. 259, 260 ).

Head with rounded anterior margin, crown wider than eye width, produced about 1/3 of entire median length anterad of eyes, coronal suture evident, about 2/3 of crown midline, disk slightly elevated ( Fig. 261 ). Face with clypeus long, lateral margins slightly convex; clypellus short, base broad, inflated, as wide as clypeus at juncture of clypeal suture, distally constricted, apex truncate ( Fig. 262 ). Crown, pronotum and mesonotum midline ratio about 1:1.2:1.7 ( Fig. 261 ). Forewing long, apex rounded, appendix narrowed ( Figs. 259, 260 ).

Male genitalia. Pygofer in lateral view broad, caudodorsal margin with stout process ( Fig. 263 ). Segment X ventral processes in dorsal view long and concealed ( Fig. 264 ). Subgenital plate long, and with fine long setae apically ( Fig. 265 ). Dorsal connective in dorsal view Y-shaped, stem shorter than rami, distally attaching to the base of processes of segment X by membrane ( Fig. 264 ). Aedeagus symmetrical, extended nearly to apex of paraphysis ( Figs. 266, 267 ); paraphysis in dorsal view asymmetrical, apex biramous forming two unequal spines, in lateral view slightly twisted dorsally and distally ( Figs. 266, 267 ). Style not reaching middle of paraphysis ( Figs. 266, 268 ).

Type material. Holotype: 1♂, CHINA: Guizhou, Kuankuoshui, Xiasi, 13 Aug. 2010, coll. Yu Xiaofei ( GUGC). Paratypes: 1♂, CHINA: Hunan, Zhangjiajie, 9 Aug. 2001, coll. Chen Xiangsheng; 1♂, same data as holotype; 1♀, CHINA: Guangxi, Damingshan, 5–10 Aug. 2011, coll. Yang Zaihua; 3♂ 6♀, CHINA: Guizhou, Fanjingshan, 21 Sep. 2011, coll. Long Jiankun, Zheng Weibin, Huang Rong & Fan Zhihua ( GUGC). 1♀, CHINA: Hunan, Zhangjiajie, 9 Aug. 2001, coll. Chen Xiangsheng; 1♂, CHINA: Guizhou, Fanjingshan, 21 Sep. 2011, coll. Huang Rong ( BMNH).

Etymology. This new species is named for Mr. Webb M.D., Natural History Museum, London, UK.

Remarks. This species is similar to T. biprocessa Fan & Dai , sp. nov., but can be separated by the color pattern of the forewing ( Figs. 6 , 259 ) and the following combination of genitalia features: dorsal connective stem and arm length ratio 1: 3 in T. biprocessa ( Fig. 11 ), 1:1.8 in T. webbi ( Fig. 264 ); style ( Fig. 266 ) not as latter ( Fig. 13 ), reaching middle of paraphysis, two apical processes of paraphysis ( Figs. 266, 267 ) also different ( Figs. 13, 14 ).

Figures

FIGURES 259 – 268. Thagria webbi Fan & Li, sp. nov. Holotype: 259. habitus, dorsal view; 260. habitus, lateral view; 261. head and thorax, dorsal view; 262. face; 263. pygofer and segment X ventral process, lateral view; 264. dorsal connective, pygofer and segment X processes, dorsal view; 265. subgential plate, lateral view; 266. aedeagus, paraphysis, connective and style, dorsal view; 267. aedeagus and paraphysis, lateral view; 268. style, lateral view. Scale bars: 259 – 262 = 1.0 mm; 263 – 268 = 0.5 mm.

FIGURES 6 – 15. Thagria biprocessa Fan & Dai, sp. nov. Holotype: 6. habitus, dorsal view; 7. habitus, lateral view; 8. head and thorax, dorsal view; 9. face; 10. pygofer, lateral view; 11. dorsal connective, pygofer and segment X processes, dorsal view; 12. subgential plate, lateral view; 13. aedeagus, paraphysis, connective and style, dorsal view; 14. aedeagus and paraphysis, lateral view; 15. style, lateral view. Scale bars: 6 – 9 = 1.0 mm; 10 – 15 = 0.5 mm.