Kuvera Distant, 1906

Luo, Yang, Liu, Jing-Jie & Feng, Ji-Nian, 2019, Two new species in the genus Kuvera Distant, 1906 (Hemiptera, Cixiidae, Cixiinae) from China, ZooKeys 832, pp. 135-152 : 137-138

Genus Kuvera Distant, 1906

Kuvera Distant, 1906: 261.

Type species.

Kuvera semihyalina Distant, 1906.

Diagnosis.

Total length varies from 4.7-7.3mm. Body coloration black to yellowish brown. Head including eyes narrower than pronotum. Vertex brown with yellow carinae and borders. Vertex short, wider than long, anterior margin of vertex obscure, with only residual traces. Vertex narrowest at subapical carina, widening towards anterior and posterior margins. Anterior and posterior margins wide and parabolic, almost parallel (Figs 1, 4, 23, 26). Frons prominent, median carina only distinct on basal portion, not reaching the anterior margin of vertex. Both sides of frons usually with yellow to brown stripe, lateral carina slightly elevated, median ocellus small. Frontoclypeal suture sub-semicircular curved upward. Clypeus swollen, postclypeus with prominent median carina, anteclypeus carina sharp or arcuate. Rostrum just reaching hind coxae, apically black (Figs 2, 24). Pronotum small, tapered with obvious carinae and distinct lateral carinae, strongly incised in middle. Mesonotum with three distinct carinate (Figs 1, 4, 23, 26). Tegmina hyaline to semi-hyaline with small granules, slender and longer than abdomen, tectiform. Forewings with a small irregular, roundish spot on anterior branch of Y-vein. Venation pattern: Scp+R usually forked distad of CuA. RP 3-branched, MP with 4 or 5 terminals, CuA 2 or 3-branched, with 10-11 apical cells (Figs 1, 3, 23, 25). Legs yellow, generally 2-4 tibial lateral spines. Hind tibia with 6 apical spines; chaetotaxy of hind tarsi: 7/ (7-8), 2nd tarsal segment with many platellae.

Male terminalia. Pygofer with a triangular medioventral process (Figs 5, 14, 27, 36). Anal segment with a rounded or concave posterior margin (Figs 7, 16, 29, 38, 46). Aedeagus with 2 spinose processes arising near base of flagellum, and flagellum with 1-2 spinose processes. Periandrium almost flat and widened at base. In ventral view, caudal margin of basal segment of periandrium convex, lateral apical angle with two teeth near distal portion (Figs 13, 19, 32, 41).

Female terminalia. Structurally variable among the included species. Ovipositor elongate, orthopteroid and apically curved upwards. 7th sternite (pre-genital sternite) small. Abdominal 9th tergite with a distinct and elliptic wax plate.

Remarks.

This genus is similar to the genus Betacixius Matsumura, 1914, but can be separated by the following features: Forewings with a small irregular, roundish spot on the anterior branch of the Y-vein, but in Betacixius , forewings with a stripe on the anterior branch of the CuA to the posterior portion of A2, and a dark long stripe on the nodal lines; one sharp process at about the mid-length of the aedeagal flagellum, but in Betacixius , the apex of the flagellum with a sharp process.

Distribution.

China (Tibet, Shaanxi, Sichuan, Zhejiang, Taiwan), Korea, Japan, Russia, India, Myanmar, Afghanistan.