Eugryllacris forficata sp. nov.

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Figures 4–5

Description. Male. Body large. Face ovoid; fastigium verticis about twice as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture (Fig. 4A). Ocelli distinct.

Anterior margin of pronotum projecting in middle, posterior margin faintly concave (Fig. 4B); lateral lobes longer than high, anterior angle arched, posterior angle rounded angular, humeral sinus indistinct (Fig. 4C).

Wings slightly surpassing the hind femora. Fore coxae with 1 small spine. Fore and middle femora unarmed; hind femora with 5–6 internal and 6–8 external spines. Fore and middle tibiae with 4 pairs of spurs and 1 pair of apical spurs on ventral surfaces. Hind tibiae dorsally with 5 internal spines, 6 external 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. 4D). Eighth abdominal tergite prolonged. Ninth abdominal tergite semi-globular: prolonged and down-curved; apical half furrowed in midline, at end of furrow split and on both sides of split area with an obtuse bump and below bump with a small compressed process faintly pointing ventrad (Fig. 4G–I). Subgenital plate almost twice as wide as long; posterior margin widely rounded with bilobate projection in middle (Fig. 4H); styli inserted laterally at posterior margin.

Female. Seventh abdominal sternite wider than long, ventral surface nearly triangularly convex, the lateral margins obliquely narrowing, the apical third constricted and terminating into a short process reaching the basal third area of subgenital plate, apex of the process obtuse (Fig. 5G). Subgenital plate transverse; basal area with fine transverse riffles, the lateral margins convex and terminating into middle area; lateral margins of middle area constricted; apical half with lateral margins subparallel, posterior margin with median concavity, the lateral lobes obtuse (Fig. 5G). Ovipositor upcurved, especially in subbasal area, margins slightly and gradually narrowing towards apices; with apical widening; apices subacute (Fig. 5E).

Coloration. Body green. Wings brown with black cells. Eyes brown. Ocelli pale yellow. Ventral spines of hind femora black. Ovipositor brown.

Measurements (mm). Male: BL 26.06–28.46, PL 6.25–6.80, TL 22.30–22.89, HFL 14.44–15.11; Female: BL 33.95, PL 7.13, TL 26.16, HFL 15.62, OvL 19.92.

Material examined. Holotype: male, Xima, Yingjiang, Yunnan, July 16, 2023, coll. by Weizong Yang . Paratypes: 1 male, Xima, Yingjiang, Yunnan, August 26, 2023, coll. by Weizong Yang; 1 female, Xima, Yingjiang, Yunnan, July 13, 2023, coll. by Weizong Yang .

Distribution. Yunnan (Yingjiang).

Discussion. The new species differs from other species of Eugryllacris by the middle area of male subgenital plate projecting (Fig. 4H) with median concavity and the lateral lobes triangular (Fig. 4I) instead of nearly widely V-shaped concave; the process of female seventh abdominal sternite with short apical area and its apex without median concavity (Fig. 5F, G).

Etymology. The new species is named for the male subgenital plate with bifurcated posterior margin.