Sarima bifurcus, Meng, Rui & Wang, Yinglun, 2016

Meng, Rui & Wang, Yinglun, 2016, Descriptions of new species of the genera Sarima Melichar and Sarimodes Matsumura from southern China (Hemiptera, Fulgoromorpha, Issidae), ZooKeys 557, pp. 93-109 : 96-98

Taxon classification Animalia Hemiptera Issidae

Sarima bifurcus sp. n. Figs 1-3, 4-9, 10-16

Type material.

Holotype: male, China: Yunnan, Mengla County, Yaoqu Town, 6 May 1991, coll. Yinglun Wang, Wanzhi Cai; Paratypes: 1 female, same data as holotype; 1 female, China: Yunnan, Menghai County, 25 October 1987, coll. Jinian Feng, Yonghui Cai.

Diagnosis.

This species is similar to Sarima ryukyuana ( Hori 1970: Figs 11-17) but differs from the latter by: 1) generally dark brown alternated with green, in Sarima ryukyuana , general coloration brown with dark patches; 2) pygofer with hind margin strongly convex, in Sarima ryukyuana , pygofer with hind margin faintly rounded; 3) aedeagus with long process reaching to basal 1/3, the process bifurcated apically in ventral view, in Sarima ryukyuana , aedeagus with long process reaching to base, the process bifurcated basally in lateral view.

Description.

Male length (n = 1) (including tegmen): 6.2 mm, length of tegmen: 4.8-4.9 mm; female length (n = 2) (including tegmen): 6.3-6.5 mm, length of tegmen: 5.5-4.6 mm.

Coloration. Generally dark brown alternated with green. Eyes dark brown. Frons pale brown with yellow brown tubercles, and green near lateral margins. Clypeus brown with median carina and lateral sides yellowish brown. Ocelli brown. Gena yellow with inconspicuous dark speckles. Tegmen dark brown, longitudinal and transverse veins green. Hind wing pale brown with brown to black veins. Leg brown, apex of fore femora and base of fore tibia with dark brown. Abdomen ventrally pale yellowish green and dorsally dark brown, apex of each segment slightly pale yellowish green (Figs 1-3).

Head and thorax. Vertex nearly hexagonal, disc distinctly depressed, with median carina and two round depressions at disc, anterior margin angularly convex and hind margin concave, margins carinated, 1.8 times wider at apex than length in midline (Fig. 1). Frons coarse with small punctures, disc slightly elevated and distinctly expanding below antennae, with median carina and lateral carinae only distinct at upper half of frons; frons with tubercules along lateral margins and upper margin, 0.8 times longer than widest part, 1.8 times wider at widest part than at base (Fig. 2). Frontoclypeal suture distinctly curved. Clypeus smooth with median carina (Fig. 2). Pronotum with anterior margin strongly acutely convex, hind margin nearly straight, disc with median carina and two small pits (Fig. 1); paranotal lobe relatively small, lateroventral angle rounded (Fig. 2). Mesonotum subtriangular with median carina, two small depressions along lateral margin, 2.3 times wider at widest part than long in midline (Fig. 1). Tegmen subquadrate, anterior margin nearly parallel to sutural margin, longer than wide, 2.4 times longer than widest part (Fig. 3). Hind wing with R bifurcate, M, CuP, Pcu, A1 and A2 simple, CuA trifurcate; R2 and M and between M and CuA1 both with single transverse vein almost in a straight line, CuA3 and CuP fused and thickened (Fig. 4). Metatibiotarsal formula 2+7/9/2.

Male terminalia. Anal segment in dorsal view nearly oval, widest near apex, apical margin obtusely convex; anus situated at basal part (Fig. 6). Pygofer with hind margin obtusely produced at dorsal half, and slightly concave near ventral margin (Fig. 5). Phallobase with dorsolateral lobe split near apex, lateral lobe forming a small short process near apex, abruptly tapered apically; ventral lobe split from dorsolateral lobe at base, gradually narrowing to apex, apical margin weakly concave at middle in ventral view; aedeagus with long process arising from apex to basal 1/3, the process bifurcated near its apex in ventral view, the inside branch slightly shorter than half length of the outside one (Figs 8, 9). Genital style in lateral view subtrianglar, with hind margin strongly concave, caudoventral angle roundly convex (Fig. 5). Capitulum elongate, basal half thin and widened at middle, with a small lateral tooth (Fig. 7).

Female terminalia. Anal segment in dorsal view suboblong, elongate, lateral margins nearly parallel, weakly widened at subapex, apical margin slightly convex; anus short, situated at base (Fig. 10). Gonoplac elongate, with wide membranes near apex, apical margin strongly convex at dorsal half, disc elevated near base in dorsal view, in dorsal view fork faintly pigmented (Figs 11, 12). Proximal part of posterior connective lamina of gonapophyses IX strongly convex in lateral view, median field bifurcate at apex in dorsal view, lateral fields with a pair of short teeth near middle, with the surface bearing numerous microvilli (Figs 13, 14). Anterior connective laminae of gonapophysis VIII broad, ventral margin straight, bearing two small teeth near apex, apical group with three small similar-sized of teeth, with four teeth in lateral group (Fig. 15). Sternum VII with apical margin distinctly arcuately convex at middle (Fig. 16).

Etymology.

The specific epithet is derived from the Latin word “bifurcus”, referring to the bifurcated process of the aedeagus in ventral view.