Peltonotellus niger Meng, Gnezdilov & Wang, 2015, sp. nov.

Peltonotellus niger, sp. nov.

Diagnosis. This species differs from other species of the genus by the following characters: 1) body black in male; 2) phallus with a short thin process directing to base at right side and with a short transversal process before it directing to right side. This species is very similar to P. labrosus Emeljanov, 2008 in female, but can be separated from the latter by the characters listed in the key above.

Description. Male length (N=5) (including tegmen): 2.2–2.4 mm, length of tegmen: 1.0–1.1 mm; female length (N=20) (including tegmen): 2.5–2.7 mm, length of tegmen: 1.1–1.3 mm.

Coloration: Male. Body black. Vertex, pronotum and mesonotum with a wide white a wide white stripe medially (Figs 20–22). Female. Body deep fulvous. Vertex, pronotum and mesonotum testaceous with a wide white stripe medially, both sides of white stripe black (Figs 23–25).

Vertex trapezoidal, anterior margin straight, posterior margin acutely concave, 2.6 times wide at the widest part than long in midline (Figs 20, 23). Frons with upper margin concave, lateral margin roundly convex between eyes, disc slightly elevated, wrinkled, with three carinae, sublateral carinae nearly semicircular; with three lines about 20 sensory pits between lateral margin and sublateral carina; 0.8 times longer in middle line than wide at the widest part (Figs 21, 24). Frontoclypeal suture arcuaterly bending upwards (Figs 21, 24). Clypeus relatively small, with strong median carina at base, disc slightly elevated and wrinkly (Figs 21, 24). Pronotum with median carina, anterior margin arcuately convex, posterior margin concave, 1.2 times longer than vertex in middle line; disc slightly elevated and distinctly rugose, with 13 sensory pits on lateral area, lateral lobes large, with five sensory pits on each side (Figs 20, 23). Mesonotum relatively large, 2.3 times longer than pronotum in middle line, disc distinctly rugose, lateral carinae arcuately connected with anterior margin, with 10 sense pores on each side (Figs 20, 23). Fore wings nearly quadrangular, 1.4 times longer than widest part, scattered granules, longitudinal veins markedly prominent (Figs 20, 23). Hind wings absent. Hind tibia with one large lateral spine. Spinal formula of hind leg 6–2–2.

Male genitalia: Anal tube short in dorsal view, lateral margins subparallel, apical margin strongly obtusely convex (Fig. 30). Anus located at middle of anal tube, paraproct dumpy (Fig. 30). Pygofer with posterior margin moderately sinuous, slightly convex at middle and then deeply concave, anterior margin concave near middle (Fig. 26). Phallobase split near apex in dorsal side, dorsal margin slightly concave, ventral margin slightly convex (Figs 28, 29). Phallus surpassing half of phallobase, with a short thin process directing to base at right side and with a short transversal process before it directing to right side (Figs 28, 29). Genital styles in lateral view narrow at base, widest at basal one fourth, gradually narrowing to apex (Fig. 27).

Female genitalia: Anal tube ovate in dorsal view, lateral margins smooth, apical margin convex (Fig. 32). Anus situated at point of basal half (Fig. 32). Gonoplacs nearly quadrangular, disc flat, apical margin obtusely convex, with a shallow notch near middle of dorsal margin (Fig. 31). Gonapophyses IX fused at base, with about eleven spinal teeth along dorsal margin and six small teeth on lateral margin of posterior connective lamina (Figs 33, 34). Anterior connective lamina of gonapophysis VIII narrow, with 3 large teeth at apex (Fig. 36). Gonocoxae VIII nearly square (Fig. 36). Sternum VII with posterior margin almost distinctly concave medially (Fig. 35).

Material examined. Holotype: male, Luqu County, Gansu Province, China, N 34º 35' 30.74'', E 102º 30' 28.3'', 2347 m, 4 August 2012, coll. Sihan Lu. Paratypes: 1 male, 14 females, same data as holotype; 3 males, 6 females, Luqu County, Gansu Province, China, 3147 m, 4 August 2012, Lin Lv.

Etymology. The specific epithet is derived from Latin word “ niger ”, referring to male black in body coloration.