Sinagryllacris cirrhatis Zhang & Bian, 2023

Zhang, Qianwen & Bian, Xun, 2023, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) XVI: One new genus with one new species, Zootaxa 5319 (1), pp. 135-140 : 136-138

publication ID	https://doi.org/ 10.11646/zootaxa.5319.1.10
publication LSID	lsid:zoobank.org:pub:F1FEC8C2-EF67-4BB1-BB5D-681290E0D3FE
DOI	https://doi.org/10.5281/zenodo.8182052
persistent identifier	https://treatment.plazi.org/id/CD6687FC-CD77-034E-53CD-FC8FB5510680
treatment provided by	Plazi
scientific name	Sinagryllacris cirrhatis Zhang & Bian
status	sp. nov.

Treatment

Sinagryllacris cirrhatis Zhang & Bian sp. nov.

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Figures 1–5 View FIGURE 1 View FIGURE 2 View FIGURE 3 View Figure 4 View FIGURE 5

Diagnosis. The new species differs from Phryganogryllacris vinhphuensis Gorochov, 2005 by body green, middle area of dorsal inner spine of hind tibiae moderately curved ( Fig. 2E–F View FIGURE 2 ), median hooks of male ninth abdominal tergite narrowly separated from each other ( Fig. 2C View FIGURE 2 ), male subgenital plate with lateral margins faintly convex in the middle area and median concavity of posterior margin wider ( Fig. 1F View FIGURE 1 ).

Description. Male. Body large. Face with scattered impressed dots ( Fig. 1A View FIGURE 1 ). Fastigium verticis about as wide as scape. Ocelli distinct.

Pronotum projected slightly in the median area of anterior margin, posterior margin nearly straight; lateral lobes longer than deep ( Fig. 1B–C View FIGURE 1 ).

Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, hind femora with 3–5 internal and 4–5 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones, middle tibiae with 1 internal spine on dorsal surface; hind tibiae with 6–7 internal and 6 external spines on dorsal surface, apices with 1 pair of dorsal spurs (the internal spine obvious longer than external one, Fig. 2E–F View FIGURE 2 ), 1 pair of subapical ventral spurs and 2 pairs of ventral spurs.

Wings surpassing hind knees and reaching about to apices of hind tibiae. Second and third abdominal tergites with stridulatory pegs ( Fig. 1D View FIGURE 1 ). Eighth abdominal tergite slightly prolonged. Ninth abdominal tergite little prolonged, lateral margins arched narrowing, posterior margin with 1 pair of narrowly separated hooks medially, its base seems mobile and apex directing outwards ( Figs. 1E View FIGURE 1 , 2A–D View FIGURE 2 ). Tenth abdominal tergite narrow, interrupted medially. Cerci slender and long, semi-circularly curved, forming one circular ( Fig. 2A, C View FIGURE 2 ). Subgenital plate longer than wide, lateral margins faintly convex in middle area, posterior margin obtusely triangular concave ( Fig. 1F View FIGURE 1 ); small styli inserted at tip of the lateral lobes.

Female. Differs from male in following characters: Cerci conical and slender ( Fig. 3E View FIGURE 3 ). Seventh abdominal sternite widened, ventral surface swollen and prolonged backward in middle, its basal half roughly triangular in ventral view, apical half forming a long and stout process with slightly converging lateral margins and faintly convex apical margin, apical area obtuse in ventral view ( Fig. 4C, F View Figure 4 ), apex curling ventrad ( Figs. 3E View FIGURE 3 , 4A View Figure 4 ) and bifurcated ( Fig. 4D, E View Figure 4 ), the apices of lateral lobes inflated ( Fig. 4D, E View Figure 4 ); the process converging middle area of subgenital plate ( Fig. 4F View Figure 4 ). Membranous area between behind process of seventh abdominal sternite and basal area of subgenital plate with transverse riffles ( Fig. 4B, D View Figure 4 ). Subgenital plate longer than wide, with converging, slightly convex lateral margins; posterior margin triangularly concave, apices of lateral lobes obtuse and swollen on ventral surface ( Fig. 4B, E View Figure 4 ). Ovipositor of medium length, behind base moderately upcurved, margins slightly and gradually narrowing towards tip, tip rounded ( Fig. 3F View FIGURE 3 ).

Tegmina ( Fig. 5 View FIGURE 5 ). Radius with two branches, both forked near tip. Media anterior free from base. Cubitus anterior releases an anterior branch in a curvature, after that branch receives an oblique branch from MA, then it divides into MP and CuA1, which are running parallel. CuA2 without further division. Cubitus posterior free from base, undivided. With four anal veins, the last two with common base.

Coloration. Body green when alive. Apices of spines of hind legs black.

Measurements (mm). Male (holotype): BL 20.6, PL 3.8, TL 30.2, HFL 11.3. Female: BL 18.8, PL 3.9, TL 29.7, HFL 12.5, OvL 10.2.

Material examined. Holotype: male, Jinuoshan, Jinghong , Yunnan, June 3, 2022, coll. by Chaotai Wei . Paratype: 1 female, Jinghong, Yunnan, August 13, 2022, coll. by Chaotai Wei .

Distribution. Yunnan (Jinghong).

Etymology. Name derived from Latin cirrhat, referring to the process of female seventh abdominal sternite with curly lateral lobes at apical area.