Ocellarnaca longilobulata 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
Ocellarnaca
Ocellarnaca longilobulata

description: Ocellarnaca longilobulata sp. nov.
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Figs. 1–2
Description. Male. Face ovoid; forehead nearly smooth with some scattered impressed; fastigium verticis about 1.4 times as wide as scape (Fig. 1A). Ocelli very distinct, light yellow; median ocellus slightly larger than lateral ocelli (Fig. 1A). Anterior margin of pronotum slightly projected in the middle, posterior margin almost truncate with median concavity; lateral lobes longer than high (Fig. 1B). Fore coxae with 1 spine. Fore and middle femora unarmed, hind femora with 3–4 internal and 6 external spines on ventral surface. Fore and middle tibiae with 5 ventral spurs on both sides on ventral surfaces, including one pair of apical spurs; hind tibiae with 7–8 internal and 8 external spines on dorsal surface, ventral surface with 1 pair of subapical spurs, apices with 1 pair of dorsal and 2 pairs of ventral spurs. Tegmina surpassing the apex of abdomen (Fig. 2A–B). Tegmen (Fig. 2C–D): radius with two branches: both forked near tip; MA has a common stem with radius, arising as first posterior branch of radius before basal third; media posterior absent; cubitus anterior forks before basal third into two veins, CuA1 and CuA2; cubitus posterior undivided, free throughout; with 4 anal veins, the last two with common base. Second and third abdominal tergites with two rows of stridulatory pegs separately (Fig. 1D). Eighth abdominal tergite prolonged (Fig. 1E). Ninth abdominal tergite projecting backwards, forming an angular (Fig. 1E), the apical half curved ventrad and split along the midline, both sides swollen and terminating into a small process on ventral margin, ventral surface of the process with one slender spine one each side (Fig. 1F–G). Cerci slender, apices subacute. Subgenital plate wider than long, posterior margin with rectangular lobe and ventral surface of the lobe with obviously median carina (Fig. 1H–I). Styli inserted on the lateral area of posterior margin of subgenital plate.
Female. Unknown.
Coloration. General color yellowish brown. Face, genae and labrum reddish brown (Fig. 1A). Ocelli pale yellow (Fig. 1A). Mandibles black. Pronotum with darker margins (Fig. 1B). Tegmina light brown. Dorsal surface of abdomen medium or reddish brown.
Measurements (mm). Male: BL 22.7, PL 5.1, TL 21.9, HFL 12.0.
Material examined. Holotype: male, Yiwu, Mengla, Yunnan, November 6, 2021, coll. by Ping Yang.
Distribution. Yunnan (Mengla).
Discussion. The new species differs from other Ocellarnaca species in: body slender, median ocellus smaller than congeneric species, about as large as lateral ocelli (Fig. 1A); male ninth abdominal tergite split along the midline, both sides swollen and terminating into a small process on ventral margin, ventral surface with one slender spine one each side (Fig. 1F–G); posterior margin of male subgenital plate with rectangular lobe and ventral surface of the lobe with obviously median carina (Fig. 1H–I).
description: Published as part of Lu, Xiangyi, Zhang, Qianwen & Bian, Xun, 2022, Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) VI: new descriptions of Ocellarnaca Gorochov, 2004, pp. 376-384 in Zootaxa 5093 (3) on pages 377-378, DOI: 10.11646/zootaxa.5093.3.5, http://zenodo.org/record/5909968