Ommatissus fuscus Chang & Chen, 2014, sp. nov.
Creators: name: Chang, Zhi-Min
name: Chen, Xiang-Sheng
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Tropiduchidae
Ommatissus
Ommatissus fuscus

description: Ommatissus fuscus sp. nov.
(Figs 1–3, 13–23)
Description. Body length (from apex of vertex to tip of forewings): male 4.4–4.5 mm (N=6), female 4.6–4.9 mm (N=6).
General colour brown to pitchy, abdomen dark brown. Vertex and pronotum (Figs 1–2) pale yellow, base of pronotum brown, anterior margin of pronotum with black fasciae; disc of mesonotum yellowish brown, with brown longitudinal stripe on each side of median carina, base of mesoscutellum black brown. Frons (Fig. 3) with reverse pyriform dark patch in upper part, postclypeus dark brown, anteclypeus stramineous with pale yellow median callus, genae pale yellow, lorae diffusely dark brownish. Forewings (Fig. 1) with brown to black except edges. Tips of spines on hind tibiae and tarsi black.
Vertex (Fig. 13) shorter in middle than widest breadth (1.0:1.8). Frons (Fig. 14) longer in middle than widest breadth (1.5:1.0). Pronotum (Fig. 5) broader than long (3.7:1.0). Forewings (Fig. 16) with about seven apical cells. Hind tibia each with 2 distinct lateral spines, spinal formula of hind leg 7–7–2.
Male genitalia. Pygofer (Fig. 18) symmetrical, anterior margin straight and posterior margin arched. Anal tube (Figs 21–22) short, anal style slightly surpassing anal tube. Gonostyli (Figs 18–20) bilaterally symmetrical, in lateral view about 1.4 times as long as broad, with a strong hook-like process arising from laterodoral margin, acute tip bent lateroventrad, with triangular process arising from base of dorsal margin, subapical knife-like process pointed to inner side. Aedeagus (Figs 18, 21–23) elongate and tubular, shaft slender in lateral view; base broad, then becoming narrow, tip nozzle-shaped, with phallotrema apically exposed. Periandrium (Figs 21–23) surrounding penis at base, dorsally connected with ventrobasal margin of anal tube, ventral projection well developed, in dorsal view bridge-like, with asymmetrical lobate processes, subapically with two hooked process pointed to outer side, ventrally with 2 small teeth.
Type Material. Holotype ♂, Langshan (26°22′N, 110°49′E), Xinning, Hunan, China, 5 Oct. 2010, X.-S. Chen. Paratypes: 3♂♂, 2♀♀, same data as holotype; 2♂♂, 2♀♀, Fenshuiling National Nature Reserve (22°47′N, 103°12′E), Jinping County, Yunnan, China, 7 Aug. 2012, J.-K. Long, W.-B. Zheng; 2♀♀, Xianheping Nature Reserve (25°06′N, 105°27′E), Anlong County, Guizhou, 26 Aug. 2012, J.-K. Long; 1♂, Wangmo County (25°10′N, 106°06′E), Guizhou, 21 Aug. 2012, W.-B. Zheng.
Host plant. Unknown.
Etymology. The specific name is derived from the Latin word “ fuscus ” (fuscous) referring its fuscous forewings except marginal area.
Distribution. China (Hunan, Guizhou, Yunnan).
Remarks. This new species is similar to O. lofouensis Muir, but can be distinguished from the latter by the forewings with brown to black except the edge; frons with reverse pyriform dark patch in the upper part; periandrium with bridge process; and aedeagus straight and tubular, with tip nozzle-shaped.
description: Published as part of Chang, Zhi-Min & Chen, Xiang-Sheng, 2014, Review of the planthopper genus Ommatissus Fieber (Hemiptera: Fulgoromorpha: Tropiduchidae) with descriptions of three new species from China, pp. 241-252 in Zootaxa 3856 (2) on pages 244-246, DOI: 10.11646/zootaxa.3856.2.5, http://zenodo.org/record/227293