Leofa (Prasutagus) yangae Duan and Zhang

Duan, Yani & Zhang, Yalin, 2009, Review of the grassland leafhopper subgenus Leofa (Prasutagus) Distant (Hemiptera: Cicadellidae: Deltocephalinae: Chiasmini), Zootaxa 1972, pp. 35-43 : 40-41

Leofa (Prasutagus) yangae Duan and Zhang sp. n.

Figs 4A–K

Length. Male: 3.0– 3.1mm; Female: 4.1–4.3mm.

General coloration ochraceous. Vertex, with or without brown arcs.

Male genitalia. Pygofer with dorsal margin very deeply and abruptly tapered caudally adjacent base of anal tube, posterior margin trilobed apically; inner dorsal appendage ventrally bidentate apically. Style in dorsal view with apical apophysis curved laterally and tapered to acute apex; lateral lobe well developed. Connective Y-shaped with stem short. Aedeagal shaft laterally compressed, broad basally in lateral view with a single medial spine-like process at midlength on ventral surface; with a flange-like processes on each side subbasally from dorsal surface. Process between connective and aedeagus long, extending to level of apex of aedeagus in lateral view.

Female genitalia. Hind margin of seventh sternum rather straight with median broadly W-shaped lobe, median area dark pigmented.

Types. Holotype: ď, China, Yunnan Prov., County Yuanmou, Laochengxiang, 2005-VIII-09, coll. Yang Meixia (NWAFU). Paratypes: China, 36ďď, 20ΨΨ, same data as holotype; 4ďď, Zhejiang Prov., Wuyanling, 670m, 2005-VIII-12, coll. Duan Yani, at light; 17ďď, 10ΨΨ, Guangxi Prov., Xinzhai, 2005-VIII-18, coll. Yang Meixia; 36ďď, 36ΨΨ, Yunnan Prov., County Yuanmou, Laochengxiang, 2005-VIII-09, coll. Yang Meixia & Kang Juxia (NWAFU and BMNH).

Remark. This species can be distinguished by the shape of the pygofer, and its appendage and the shape of the aedeagus as noted in the above description. It differs from other members of the subgenus in having a single ventral process of the aedeagal shaft rather than one or two lateral pairs.

Etymology. The species is named after Yang Meixia (NWAFU) who collected most of the type specimens.

Figures

FIGURE 4. A, B. Leofa (Prasutagus) yangae Duan and Zhang sp. n. A: dorsal habitus (♂); B: dorsal habitus (Ψ).

FIGURE 4. C – K, Leofa (Prasutagus) yangae Duan and Zhang sp. n. C: female genitalia; D: pygofer, dorsal view; E: pygofer, lateral view; F: apex of pygofer appendage, lateral view; G: valve and subgenital plate, ventral view; H: style, dorsal view; I: aedeagus, paraphysis and connective, lateral view; J: aedeagus, posterior view; K: connective, dorsal view.