Eugryllacris lobulis Bian & Shi

Bian, Xun & Shi, Fuming, 2016, Review of the genus Eugryllacris Karny, 1937 (Orthoptera: Gryllacridinae) from China, Zootaxa 4066 (4), pp. 438-450 : 447-449

Eugryllacris lobulis Bian & Shi sp. nov.

( Fig. 7 , Map 1)

Male. Size medium, form not especially robust. Fastigium verticis about 2 times as wide as sacpe, lateral margins not raised. Scape shorter than length of eye, internal margin slightly swelling; pedicel and first segment of flagellum combined about as long as length of eye. Eyes elongate and oval, protruding outwards; ocelli indistinct, median ocellus poorly defined ( Fig. 7 A). Anterior margin of pronotum slightly projected in the middle, posterior margin almost straight; lateral lobes longer than high, ventral margin truncate ( Fig. 7 B–C). Hind femora with 5 inner and 7 outer ventral spines; hind tibiae with 6 pairs of short, robust spines on dorsal surface, these becoming larger apically. Tegmina considerably surpassing apices of hind femora, reaching the middle area of hind tibiae; hind wings slightly longer than tegmina. Ninth abdominal tergite divided in the middle, forming two lobes, the apices with 1 small hook, its apices acute ( Fig. 7 D). Cerci longer, cylindrical, the apical half slightly curved outwards ( Fig. 7 E). Anterior margin of subgenital plate almost straight, posterior margin with 1 triangular concavity, the lateral lobes shorter than styli ( Fig. 7 E). Styli conical, slightly curved inwards, its apices obtuse, located on the lateral margins of subgenital plate near apex ( Fig. 7 E).

Female. This species is known only from male.

Coloration. Yellowish green. Eyes brown. Occiput and between antennal cavities reddish ( Fig. 7 A). Spines of hind legs with apices black. Tarsi and claw brown.

Measurements (mm). BWL: ♂ 38.9; BL: ♂ 25.3; PL: ♂ 9.1; TL: ♂ 31.0; HF: ♂ 17.5.

Material examined. Holotype: male, Emeishan, Sichuan, 28 June, 2009, coll. by Gao Xiang.

Distribution. China (Sichuan).

Remarks. The new species is similar to Eugryllacris bifoliata Bian & Shi sp. nov., but differs from the latter in occiput and between antennal cavities reddish; posterior margin of subgenital plate with 1 shallow triangular concavity in the middle, the lateral lobes obviously shorter than styli. In Eugryllacris bifoliata Bian & Shi sp. nov., occiput and between antennal cavities are same-color with body, and the lateral lobes is nearly as long as styli.

Etymology. “ Lobul ” is a Greek word meaning smaller lobe, referencing to the lateral lobes of subgenital plate.

MAP 1. Distribution of the genus Eugryllacris from China.

Figures

FIGURE 7. Eugryllacris lobulis Bian & Shi sp. nov. male: A. head in frontal view; B – C. head and pronotum: B. dorsal view, C. lateral view; D, E. apex of abdomen: D. apical and ventral view, E. ventral view.