Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) VI: new descriptions of Ocellarnaca Gorochov, 2004 Author Lu, Xiangyi 0000-0001-9893-9304 Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541006, China. & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin 541006, China. & luxiangyi 631 @ 163. com; https: // orcid. org / 0000 - 0001 - 9893 - 9304 Author Zhang, Qianwen 0000-0001-6856-840X Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541006, China. & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin 541006, China. & Zhangqianwen @ 163. com; https: // orcid. org / 0000 - 0001 - 6856 - 840 X Author Bian, Xun Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541006, China. & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin 541006, China. text Zootaxa 2022 2022-01-27 5093 3 376 384 journal article 2392 10.11646/zootaxa.5093.3.5 223e6afa-d788-4711-ba29-d52f8f8d93d8 1175-5326 5909968 4F9E1DAC-1DD2-4F63-A5D5-7DAE2104904A Ocellarnaca longilobulata sp. nov. K叶DflDzễ Figs. 1–2 FIGURE 1. Ocellarnaca longilobulata sp. nov. Male: A. head in frontal view; B–C. head and pronotum: B. lateral view, C. dorsal view; D. second and third abdominal tergites in lateral view; E–I. apex of abdomen: E. lateral view, F. apical view, G. apical and slightly ventral view, H–I. ventral view. 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 ).