Goniagnathus (Tropicognathus) nervosus Melichar

Duan, Yani, Zhang, Yalin & Webb, M. D., 2009, Review of the leafhopper tribe Goniagnathini (Hemiptera: Cicadellidae: Deltocephalinae) from China, Zootaxa 2314 (1), pp. 50-62 : 56-57

Goniagnathus (Tropicognathus) nervosus Melichar

( Figs 4A–E , 7D, 7J , 8C )

Goniagnathus nervosus Melichar, 1903: 180 ; Kuoh, 1966: 135; Dash & Viraktamath, 2001: 71, Figs 30–37. Goniagnathus (Tropicognathus) nervosus, Viraktamath & Gnaneswaran, 2009: 52 .

Length. Male: 6.2–6.4mm; Female: 6.1–6.5mm.

Reddish-brown. Vertex, pronotum and scutellum mottled with irregular reddish-brown spots. Anterior margin of vertex ochraceous, with two orange traverse stripes, anterior margin sometimes brown; interrupted black fascia on face. Forewing veins mottled with dark brown and white spots.

Vertex 3–4x as wide as median length. Forewing with inner anteapical cell closed basally by cross vein.

Male genitalia. Pygophore constricted at mid-length and broadened caudally with a few hair-like setae apically, dorsocaudal appendage extending over entire caudal margin. Fused subgenital plates and valve twice as broad as long, slightly convexly rounded sometimes with a median notch on caudal margin. Apophysis of style bilobed. Aedeagal shaft strongly curved caudodorsad and in apical 0.25 strongly curved anteriorly, with one basal pair of lateral short, stout processes at 0.25 distance, one slender elongate unpaired process on caudal margin directed caudodorsad at apical 0.33 and one pair of ventrally directed, slender processes arising subapically on anterior margin; gonopore large, apical.

Female genitalia. Seventh sternum 2.5x as wide as long, hind margin sinuate with median notch.

Material examined. China, Guangdong Prov.: 1♀, Guangzhou, Mt., Baiyunshan , 9. i. 1935 ( ZSU) , 1♂, Conghua, Aotou , 43m, 25. viii. 2006, coll. Yang Meixia ; Hainan Prov.: 1♂, Mt. Lianhuashan , 8. viii. 1929 ( ZSU) .

Distribution. Sri Lanka, India, China (Guangdong, Hainan).

Remarks. The identity of this species is taken from Dash & Viraktamath (2001).

Figures

FIGURE 4. Goniagnathus (Tropicognathus) nervosus Melichar. A: Male pygophore, lateral view; B: Fused subgenital plates and valve, ventral view; C: Style, dorsal view; D: Aedeagus, dorsal view; E: Aedeagus, lateral view.

FIGURE 7. Goniagnathus and Tamaricades species. A–F, habitus. A: G. brevis; B: G. cornutus Duan, sp. n.; C: T. tamaricus; D: G. nervosus; E: G. punctifer; F: G. rugulosus. G–L, face. G: G. brevis; H: G. cornutus Duan, sp. n.; I: T. tamaricus; J: G. nervosus; K: G. punctifer; L: G. rugulosus.

FIGURE 8. Forewings of Goniagnathus and Tamaricades species. A: G. brevis; B: T. tamaricus; C: G. nervosus; D: G. punctifer.