Thagria menglana Wang & Zhang

Wang, Xiu-Dan & Zhang, Ya-Lin, 2017, Five new species of the leafhopper genus Thagria Melichar (Hemiptera: Cicadellidae: Coelidiinae) from China, Zootaxa 4250 (3), pp. 219-228 : 220-223

Thagria menglana Wang & Zhang , sp. nov.

( Figs. 12–20 )

Description. Measurements. Male, body length: 6.51 mm; head width: 1.70 mm; crown: length×width: 0.68× 0.93 mm; eye width: 0.57 mm; clypeus length: 1.29 mm; pronotum length×width: 0.67× 1.90 mm; mesonotum length: 0.97 mm. female, unknown.

External morphology. Crown light brown; eyes gray with longitudinal red band near inner margin ( Fig. 14 ), ocelli dark brown ( Fig. 13 ); clypeus brown, with apex and center pale; clypellus brown; gena pale yellow ( Fig. 14 ). Pronotum yellowish brown with light brown knobs; mesonotum pale brown ( Fig. 13 ). Forewing brown, with small ivory markings in outer anteapical cell and discal cell; venation fuscous, except A1, A2, R1, and R2+3 translucent ( Fig. 12, 15 ). Legs pale ( Fig.15 ).

Head narrower than pronotum, anterior margin rounded; crown wider than eye width, beyond eyes about 1/3 median length; coronal suture about half of median length; ocelli close to anterior margin of crown ( Fig. 13 ). Face with clypeus long, lateral margins parallel, slightly concave in middle; clypellus short, inflated basally ( Fig. 14 ). Crown, pronotum and mesonotum midline ratio about 1:1:1.4. Forewings typical.

Male genitalia. Pygofer in lateral view with caudoventral lobe broad ( Fig.16 ), caudodorsal process broad and short ( Fig.17 ). Segment X ventral processes absent; dorsal connective Y-shaped, with a very long projection basally ( Fig. 17 ). Aedeagus tubular, long, reaching to near apex of ventral paraphysis; ventral paraphysis flat in lateral aspect, while broad basally, tapered to apical 1/3, apex extended laterally on both sides, transverse and slender with small process on left in dorsal view ( Figs. 19 ). Style very slender, shorter than paraphysis, tapered distally; connective longitudinally rectangular ( Fig. 18 ). Subgenital plate slender, apex truncate with tuft of fine long setae ( Fig. 20 ).

Material examined. Holotype: male, CHINA: Mengla County, Menglun Town , Xishuangbanna , Yunnan Province, 781± 17m, 21°57′953″N, 101°12′305″E, 13 AUG 2011, coll. Zhang, Zhao & Chen, No. Hm 022017. ( NWAFU).

Etymology. The specific epither is named after the locality of the holotype, Mengla County. Remarks. This species is similar to T. janssoni ( Nielson, 1977: 88, Figs. 305–306), but differs in having the apex of the ventral paraphysis transverse, not recurved in lateral view.

Figures

FIGURES 12 – 20. Thagria menglana Wang & Zhang, sp. nov. Holotype: 12. habitus, dorsal view; 13. head and thorax, dorsal view; 14. face; 15. habitus, lateral view; 16. pygofer, lateral view; 17. dorsal connective, pygofer and segment X processes, ventral view; 18. style and connective, ventral view; 19. aedeagus and paraphysis, dorsal view; 20. subgential plate, lateral view;. Scale bars: 12 – 15 = 1.0 mm; 16 – 20 = 0.5 mm.