Neohemisphaerius guangxiensis, Zhang, Zheng-Guang, Chang, Zhi-Min & Chen, Xiang-Sheng, 2016

Zhang, Zheng-Guang, Chang, Zhi-Min & Chen, Xiang-Sheng, 2016, Review of the planthopper genus Neohemisphaerius (Hemiptera, Fulgoroidea, Issidae) with description of one new species from China, ZooKeys 568, pp. 13-21 : 15-17

Taxon classification Animalia Hemiptera Issidae

Neohemisphaerius guangxiensis sp. n. Figs 1-6, 7-12

Type material.

Holotype: ♂, China: Guangxi, Maoershan National Nature Reserve (E110°27'56.9", N25°54'43.5"), 1470 m, 18 July 2015, Z.G. Zhang; paratypes: 2 ♂♂, 5 ♀♀, same data as holotype.

Description.

Body length (from apex of vertex to tip of forewing): male 4.63 mm, female 5.21 mm; Forewing: male 4.12 mm, female 4.60 mm.

Coloration.

Male: Vertex (Fig. 1) and frons (Fig. 3) brown, edges dark brown. Clypeus (Fig. 3) pale yellowish, rostrum (Fig. 3) dark brown, antenna brown (Figs 2-3). Pronotum (Fig. 1) brown with pale brown on disc, mesonotum (Fig. 1) brown with lateral angles dark brown. Forewings (Figs 1-2) brown with black markings near costal margin, hind wing pale brown. Legs pale brown. Female: Clypeus (Fig. 6) pale green near base, rostrum (Fig. 6) dark brown. Pronotum (Fig. 4) dark brown, mesonotum black brown. Forewings (Figs 4-5) with extensive irregular black markings, costal margin with pale brown spots at base and apex, pale stripe arising from middle of costal margin oblique to suture.

Head and thorax.

Vertex (Fig. 1) quadrangular, about 3.14 times wider than long, anterior margin straight, posterior margin angulately concave. Frons (Fig. 3) narrow at base, widest between eyes, about 1.36 times longer than broad, median carina present, distinctly convex above frontoclypeal suture. Clypeus (Fig. 3) with a hump-like process. Pronotum (Fig. 1) with posterior margin straight, depressed on disc, with two central pits. Mesonotum (Fig. 1) subtriangular, about 1.94 times longer in midline than the length of pronotum. Forewings (Figs 1-2) hemispherical, claval suture present, with longitudinal veins. Hind wings rudimentary, veins obscure. Hind tibiae with 2 lateral teeth. Spinal formula of the hind leg (9,10)-(4,5)-2.

Male genitalia.

Anal tube (Fig. 12) relatively short, oval in dorsal view. Anal column relatively long, located at 1/3 basad of anal tube. Pygofer (Fig. 8) in lateral view, with anterior margin moderately concave, posterior margin raised near base. Aedeagus dorsally (Fig. 9) with a hump-shaped process near mid-length, each side with a bird-head-shaped process at 1/3 distance from apex, process acute apically, directed cephalad; dorso-lateral lobes obtuse apically, aedeagus ventrally with a pair of convergent hook-like processes, apical margin of ventral lobe (Fig. 10) with a notch in middle. Style (Fig. 11) with a strongly convex hind margin and capitulum narrowing apically.

Etymology.

The specific name refers to the locality, Guangxi province, China.

Host plant.

Unknown.

Distribution.

China (Guangxi).

Remarks.

This species is similar to Neohemisphaerius wugangensis , but differs in: (i) Anal tube (Fig. 12) longer than broad, with apical margin not expanded (in wugangensis anal tube about as long as broad, apical margin expanded (see Chen et al. 2014: figs 2-35: H); (ii) Aedeagus (Fig. 9) with a bird-head-shaped subapical process in each side, ven trally with pairs of long hooks near mid-length (in wugangensis processes of aedeagus different and ventrally with pairs of short hooks 1/3 from base); (iii) Apical margin of ventral lobe (Fig. 10) with a notch in middle (in wugangensis ventral lobe with apical margin convex in middle (see Chen et al. 2014: fig. 2-35: K).