Homogryllacris unicolor Lu & Zhang & Bian 2022, sp. nov.
Creators: name: Lu, Xiangyi
name: Zhang, Qianwen
name: Bian, Xun
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllacrididae
Homogryllacris
Homogryllacris unicolor

description: Homogryllacris unicolor sp. nov.
KOi同Dzae
Figures 1–2, 6A
Diagnosis. The new species differs from Homogryllacris anelytra Shi, Guo & Bian, 2012 by: body almost unicolor (Fig. 6A), yellowish brown, only dorsal surface of male eighth abdominal tergite with 1 black spot in middle (Fig. 1E); the lateral lobes of male subgenital plate with acute apex at posterior margin (Fig. 1I); the median concavity of female subgenital plate deeper (Fig. 2F).
Description. Male. Body medium. Fastigium verticis approx. 1.7 times as broad as scape. Face with scattered impressed dots (Fig. 1A). Median ocellus distinct. Pronotum with anterior margin slightly projecting, posterior margin nearly straight (Fig. 1B); lateral lobes longer than high (Fig. 1C). Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, hind femora with 6–7 internal and 5–6 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; middle tibiae dorsally with 1 internal spine; hind tibiae with 5–6 internal and 7–8 external spines on dorsal surface, apices with 1 pair of dorsal spurs, 1 pair of subapical ventral spurs and 2 pairs of ventral spurs. Wings reaching the middle area of mesonotum (Fig. 1C). Second and third abdominal tergites with two rows of stridulatory pegs (Fig. 1D). Eighth abdominal tergite prolonged, and curved backward and ventrad (Fig. 1F). Ninth abdominal tergite conical in dorsal view, posterior margin with a semicircular concavity in middle (Fig. 1E). Tenth abdominal tergite very short, hidden under the ninth abdominal tergite, and provided with a pair of long processes which reaching the middle area of subgenital plate (Fig. 1G–I). Basal area of the process depressed, terminating into apex, apical area spine-shaped with acute tip (Fig. 1G–H); crossed each other behind base, then running downward and outward, then curved forward, the apex directed dorsad which hook-shaped in lateral view (Fig. 1F, H). Subgenital plate longer than wide, the lateral margins slightly convex at basal half, converging; posterior margin with a triangular concavity in middle, the lateral lobes triangular with the external margins slightly longer than the internal margins (Fig. 1I); styli slender located on both sides of the subapical area of subgenital plate (Fig. 1I).
Female. Seventh abdominal tergite longer than other sterna, basal area with 1 pair of copulatory depressions (Fig. 2F). Intersegmental membrane between seventh sternite and subgenital plate about as long as subgenital plate provided with transverse folds (Fig. 2F). The outlines of subgenital plate sub-trapezoidal, basal area wider than apical, the lateral margins curved dorsad, posterior margin with median concavity (Fig. 2F). Ovipositor about 0.92 times as long as body, gradually upcurved, margins slightly and gradually narrowing towards tip, the subapical area faintly curved dorsad, tip acute (Fig. 2G).
Coloration. Body yellowish brown (Fig. 6A). Eyes black. Ventral margins of antennal cavities black (Figs. 1A, 2A).Dorsal surface of abdomen reddish, eighth abdominal tergite with 1 black spot in middle (Fig. 1E). Ovipositor brown.
Material examined. Holotype: male, Tenghe Bridge, Lvchun, Yunnan, August 6, 2022, coll. by Xiangyi Lu and Xiaoyu Peng. Paratype: 1 female, other information as holotype.
Measurements (mm). Male: BL 20.8, PL 4.9, TL 1.5, HFL 10.9; Female: BL 24.3, PL 4.6, TL 1.2, HFL 11.9, OvL 22.0.
Distribution. Yunnan (Lvchun).
Etymology. The new species is named for the coloration of body almost yellowish brown.
description: Published as part of Lu, Xiangyi, Zhang, Qianwen & Bian, Xun, 2022, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) XI: Three new species of Homogryllacris from Yunnan Province, pp. 281-290 in Zootaxa 5200 (3) on pages 282-284, DOI: 10.11646/zootaxa.5200.3.6, http://zenodo.org/record/7260544