Homogryllacris guizhouensis Pang & Zhang & Bian 2023, sp. nov.
Creators: name: Pang, Siyu
name: Zhang, Qianwen
name: Bian, Xun
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllacrididae
Homogryllacris
Homogryllacris guizhouensis

description: Homogryllacris guizhouensis sp. nov.
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Figure 4
Description. Male. Body medium. Face with scattered impressed dots (Fig. 4A). Fastigium verticis about 1.5 times as wide as scape. Fastigium frontis separated from fastigium verticis by a very fine suture (Fig. 4A). Median ocellus distinct.
Anterior margin of pronotum arched, posterior margin nearly straight (Fig. 4B); lateral lobes longer than high (Fig. 4C).
Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces; hind femora with 5 internal and 6 external spines on ventral surface. Fore tibiae ventrally with 4 pairs of spurs and 1 pair of apical spurs. Middle tibiae with 4 pairs of spurs including 1 pair of apical spurs on ventral surface, dorsal surface with 1 internal spine. Hind tibiae with 5 pairs of spines on dorsal surface, subapical area with 1 pair of ventral spurs, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs.
Tegmina reduced, only the middle area of metanotum (Fig. 4D). Second and third abdominal tergites each had 2 rows of stridulatory pegs (Fig. 4F). Seventh abdominal tergite slightly longer than other sterna, middle area with 1 pair of copulatory depressions (Fig. 4H). Intersegmental membrane between seventh sternite and subgenital plate shorter with faintly transverse folds (Fig. 4H). Subgenital plate semicircular in general outline, posterior margin widely rounded with faintly median concavity. Ovipositor straight, margins slightly converging in apical half, apices acute (Fig. 4I).
Male. Unknown.
Coloration. Body reddish black.Antennal cavities with black margins (Fig. 4A). Scape with black spots at basal and apical areas of internal margin, basal areas of pedicelli with black spots on internal margin. Fastigium frontis with 1 pair of small black spots between antennal cavities (Fig. 4A). Fastigium verticis with 1 transversal black stripe (Fig. 4A). Dorsal surface of head with two longitudinal black spots along the midline (Fig. 4B). Pronotum almost black with irregular yellowish spot at lateral lobes (Fig. 4C). Apical areas of all femora and basal areas of all tibiae purpureal. Tegmina brown (Fig. 4D). Abdominal tergites reddish black. Ovipositor brown.
Measurements (mm). Female: BL 21.21, PL 4.48, TL 3.69, HFL 10.75, OvL 18.96.
Material examined. Holotype: female, Nayong, Guizhou, July 10, 2023, coll. by Yao Zhang.
Distribution. Guizhou (Nayong).
Discussion. The new species differs from Homogryllacris irregularis Lu, Zhang & Bian, 2022 by the following: frons yellow brown without black spots (Fig. 4A); dorsal surface with narrow black band; pronotum almost black (Fig. 4B); dorsal surface of abdomen reddish black; posterior margin of female subgenital plate rounded without median concavity (Fig. 4H).
Etymology. Named after the type locality.
description: Published as part of Pang, Siyu, Zhang, Qianwen & Bian, Xun, 2023, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) XX: New descriptions from Guangxi and Guizhou, pp. 121-130 in Zootaxa 5357 (1) on pages 124-126, DOI: 10.11646/zootaxa.5357.1.5, http://zenodo.org/record/10012665