Neolarnaca longipenna, Xun Bian & Fuming Shi, 2016

Xun Bian & Fuming Shi, 2016, Review of the genus Neolarnaca Gorochov, 2005 (Orthoptera: Gryllacrididae) from China, Zoological Systematics 41 (2), pp. 227-230 : 230

Neolarnaca longipenna sp. nov.

(Figs 8–19)

Male. Slender, both sexes fully-winged. Fastigium verticis broad, about 1.5 times the width of scape, lateral margins not raised (Fig. 8). Frons smooth. Eyes elongate, slightly shorter than the length of scape; ocelli smaller, subcircular. Scape about as long as pedicel and first segment of flagellum combined. Pronotic anterior margin slightly projected medially, posterior margin nearly straight; lateral lobes longer than height with ventral margin undulating (Figs 9–10). Fore coxae with 1 small spine. Fore and median femora unarmed spine on ventral surface; hind femora with 5–6 inner and 5 outer spines on ventral surface; hind tibiae with 5 pairs of dorsal spurs, 1 pair of dorsal apical spurs, 2 pairs of ventral apical spurs and 1 pair of ventral subapical spurs. Tegmina reaching apex of abdomen (paratypes) or slightly surpassing apex of abdomen and reaching the basal area of hind tibiae (holotype). Ninth abdominal tergite with 1 pair of spines pointing downwards and forwards, apices acute (Figs 11–13). Tenth abdominal tergite membranous. Cerci shorter, apical area slightly curved inwards (Figs 12, 14). Subgenital plate wider than long, anterior margin almost straight, posterior margin with 1 obtuse-triangular concavity; styli stout, cylindrical, apices obtuse.

Female. Size slightly larger than male. Basal area of subgenital plate membranous, basal margin almost straight, narrowing, posterior margin narrowly rounded (Fig. 19). Ovipositor short, strongly upcurved; ventral and dorsal margins smooth, apex subacute (Fig. 18).

Coloration. Male body yellowish brown (Figs 8–10), female brown (Figs 15–17). Eyes pale, ocelli nearly white. Pronotum black with yellowish brown edges and 1 narrow yellowish brown stripe in midline (Figs 8, 15). Spines and spurs of hind legs with apices light brown.

Material examined. Holotype ♂, Mao ′ershan, Xing ′an, Guangxi, 21 September 2011, coll. Xun Bian. Paratypes. 1 ♂ 1 ♀, Damingshan, Shanglin, Guangxi, 18 July 2012, coll. Jinrong Bai.

Measurements (mm). Body ♂ 18.0–21.5, ♀ 24.5; pronotum ♂ 5.2–6.8, ♀ 6.7; tegmina ♂ 17.0–7.3, ♀ 16.5; hind femora ♂ 13.7–14.0, ♀ 15.5; ovipositor 10.3.

Distribution. China (Guangxi).

Etymology. The new specific name refers to the long and well developed wings.

Remarks. The new species differs from N. vera Gorochov, 2004 in following: tegmina longer, reaching or slightly surpassing the apex of abdomen; pronotum with 1 narrow yellowish brown stripe along the midline; posterior margin of male subgenital plate with 1 obtuse-triangular concavity.