Kuvera elongata Zhi & Chen, 2023

Zhi, Yan, Yang, Lin & Chen, Xiang-Sheng, 2023, Taxonomic study of the genus Kuvera Distant, 1906 (Hemiptera, Fulgoromorpha, Cixiidae) with descriptions of two new species from China, ZooKeys 1141, pp. 41-63 : 41

Kuvera elongata Zhi & Chen sp. nov.

Figs 2A, B , 5

Type material.

Holotype: ♂, China: Guizhou Province, Tongren City, Fanjingshan National Nature Reserve, Jinding (27°54'N, 108°42'E), 31 May 2002, leg. Xiang-Sheng Chen; paratypes: 8♂♂ 1♀, same data as holotype; 2♂♂, Guizhou Province, Tongren City, Fanjingshan National Nature Reserve, Yinjiang County, Yongyi Township, (27°54'N, 108°38'E), 29 May 2002, leg. Xiang-Sheng Chen.

Description.

Body length: male 4.8-5.8 mm (N = 11), female 6.0 mm (N = 1).

Coloration. General color blackish brown (Figs 2A, B , 5A, B ). Eyes dark brown, ocelli light yellowish. Vertex brown, pronotum dark brown and mesonotum blackish brown. Face generally blackish brown. Rostrum generally brown except darker tip. Forewing semi-translucent, stigma dark brown. Hind tibiae brown and abdominal sternites blackish brown.

Head and thorax. Vertex (Fig. 5A ) broad, 2.7 times wider than long; anterior margin slightly arched convex, posterior margin arched concave; median carina reaching transverse carinae. Frons (Fig. 5B ) 1.1 times as wide as long, median carina indistinct, extending from basal 1/4 to median ocellus. Clypeus with median carina distinct and elevated throughout. Pronotum (Fig. 5A ) 2.3 times longer than vertex, posterior margin nearly at right angle. Mesonotum 1.6 times longer than pronotum and vertex combined. Forewing (Fig. 5C ) 2.7 times longer than wide, with 11 apical and 6 subapical cells; fork Sc+RP distad of fork CuA1+CuA2; first crossvein r-m basad of fork MP; RP 3 branches, MP with five terminals: MP11, MP12, MP2, MP3, and MP4, fork MP1+MP2 basad of fork MP3+MP4. Hind tibia with 3 lateral spines, metatibiotarsal formula: 6/7/8, second segment of hind tarsus with 2-3 platellae.

Male genitalia. Pygofer (Fig. 5D, E ) symmetrical, dorsal margin concave and U-shaped ventrally, widened towards apex; in lateral view, lateral lobes arched extended caudally. Medioventral process campanulate in ventral view. Anal segment (Fig. 5D, F ) long, tubular, symmetrical, apical lobes slightly enlarged, 2.0 times longer than wide in dorsal view; anal style finger-like, not extending beyond anal segment. Gonostyli (Fig. 5D, E, G ) symmetrical in ventral view; in inner lateral view, apical part extended, apical margin round. Aedeagus (Fig. 5H-K ) with three processes in total. Spinose process on right side at apex of periandrium being the shortest, slightly curved outward and apex directed dorsocephalad; left side near base with a slightly curved long spinose process, apex strongly recurved and directed to left side; base of periandrium ventrally with several small teeth. Endosoma slender, structure simple, left side near the middle with a stout and long spinose process, which extended beyond the apex of the endosoma, apex directed ventrad.

Host plant.

Grass.

Distribution.

China (Guizhou).

Etymology.

The specific name is derived from the Latin elongatus, meaning elongated, referring to the elongated spinose process on the left side of endosoma.

Remarks.

This new species is similar to K. vilbastei Anufriev, 1987 and K. huoditangensis Luo, Liu & Feng, 2019, but differs in: (1) left spinose process of periandrium not exceeding right lateral margin of periandrium (in K. vilbastei and K. huoditangensis , left spinose process of periandrium exceeding right lateral margin of periandrium); (2) spinose process of endosoma extending beyond the apex of the endosoma (spinose process of endosoma not extending beyond the apex of the endosoma in K. vilbastei and K. huoditangensis ); and (3) anal segment symmetrical (asymmetrical in K. vilbastei and K. huoditangensis ).

Figures

Figure 2. Habitus A, B Kuvera elongata sp. nov., male A dorsal view B lateral view C, D Kuvera laticeps (Metcalf, 1936), male C dorsal view D lateral view.

Figure 5. Kuvera elongata sp. nov., male A head and thorax, dorsal view B face, ventral view C forewing D genitalia, lateral view E pygofer and gonostyli, ventral view F anal segment, dorsal view G gonostyli, inner lateral view H aedeagus, right side I aedeagus, left side J aedeagus, dorsal view K aedeagus, ventral view. Scale bars: 0.5 mm (A, B, D-K); 1.0 mm (C).