Eugryllacris longiproceris sp. nov.

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Figure 1

Description. Female. Body large. Face ovoid; fastigium verticis about 2 times as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture (Fig. 1A). Ocelli distinct, median ocellus slightly larger than lateral ocelli (Fig. 1A).

Anterior margin of pronotum projecting in middle, posterior margin nearly straight (Fig. 1C); lateral lobes longer than deep, anterior angle widely rounded, posterior angle rounded angular, humeral sinus shallow (Fig. 1B).

Fore coxae with 1 small spine; fore and middle femora unarmed, tibiae ventrally with 4 pairs of spurs and 1 pair of apical spurs; dorsal surface of middle tibiae with 1 internal spine. Hind femora with 4 internal and 5 – 6 external spines on ventral surface; dorsal surface of tibiae with 6 pairs of spines and 1 pair of apical spurs, ventral surface with 1 pair of subapical spurs and 2 pairs of apical spurs.

Second and third abdominal tergites with few, very minute stridulatory pegs (Fig. 1D). Seventh abdominal sternite wider than long, ventral surface of basal area with 1 process reaching the middle area of subgenital plate, basal half of the process triangular in ventral view, apical half long and slender, the lateral margin faintly narrowing; posterior margin with small notch (Fig. 1G). Subgenital plate transverse; the lateral margins with basal area convex, middle area constricted, apical half faintly narrowing; posterior margin triangular concave with the lateral lobes triangular (Fig. 1G). Ovipositor with basal half straight, apical half faintly curved dorsad; hardly longer than hind femur; dorsal margin of apices slightly expanded (Fig. 1H).

Male. Unknown.

Coloration. Body green. Eyes brown. Ocelli pale yellow. Ovipositor brown.

Measurements (mm). Female: BL 31.13–32.0, PL 8.81–9.12, HFL 18.84–19.51, TL 31.52–32.6, OvL32.10–33.4.

Material examined. Holotype: female, Shiwandashan, Guangxi, July 15, 2023, coll. by Nianqiu Zhang. Paratype: 1 female, Shiwandashan, Guangxi, June 30, 2023, coll. by Nianqiu Zhang.

Distribution. Guangxi (Shiwandashan).

Discussion. The new species differs from other species of the genus in medium ocellus smaller, about as large as lateral ocelli (Fig. 1A); female seventh abdominal sternite with 1 long and narrow process (Fig. 1F); ovipositor longer, gradually upcurved instead of strongly upcurved.

Etymology. The new species’ name derives from two Latin words: long and procer referring to the female seventh abdominal sternite with 1 long narrow process.