Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) XIX: New supplements to the genus Apterolarnaca Gorochov, 2004 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 33 @ 163. com; https: // orcid. org / 0000 - 0001 - 6856 - 840 X Author Luo, Yehong Guangxi Huaping National Nature Reserve Management Office, Guilin 541000, Guangxi, China; 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 2023 2023-09-13 5343 6 501 520 https://www.mapress.com/zt/article/download/zootaxa.5343.6.1/51846 journal article 10.11646/zootaxa.5343.6.1 1175-5326 8345886 E526459C-094A-4CA7-AE1B-3DF44F64C09E Apterolarnaca ( Bianigryllacris ) sicula Zhang & Bian sp. nov. ńŵflüdzḋă Figure 12 Description. Female. Fastigium verticis about two times as wide as scape. Face with scattered impressed dots ( Fig. 12A ). Ocelli indistinct. Pronotum with anterior and posterior margins truncate ( Fig. 12B ); lateral lobes longer than high, anterior angle widely rounded, posterior angle angular ( Fig. 12C ). Fore coxae swollen with 1 spine ( Fig. 12B ). Fore and middle femora unarmed on ventral surfaces, hind femora with 1 internal and 4 external spines on ventral surface. Fore tibiae ventrally with 4 pairs of spurs and 1 pair of apical spurs; middle tibiae ventrally with 3 pairs of spurs and 1 pair of apical spurs, dorsal surface with 1 internal spine. Hind tibiae arched with 2 internal and 5 external spines on dorsal surface, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs. Second and third abdominal tergites each with two rows of stridulatory pegs ( Fig. 12D ). Seventh abdominal sternite normal. Subgenital plate slightly wider than long, lateral margins narrowing to apex which slightly convex in middle, posterior margin narrowly angular ( Fig. 12G ). Ovipositor short, apices narrowly rounded ( Fig. 12F ). Male. Unknown. Coloration. Body yellowish brown. Fastigium verticis with transverse black stripe between antennal cavities which short extending to dorsal surface of head along the middle area ( Fig. 12A ). Internal margins of antennal cavities black ( Fig. 12A ). Genae with longitudinal black stripe below eyes. Dorsal surface of head with semicircular black pattern, behind eyes with a short longitudinal black stripe on each side ( Fig. 12B ). Abdominal tergites with narrow black margins, dorsal surface of abdomen with a wide longitudinal black band. Apices of all femora black. Basal and apical areas of all tibiae with black rings, dorsal spines of hind tibiae black ( Fig. 12E ). Material examined. Holotype : female, Yangmeiao , Jiuwanshan , Guangxi , August 5, 2021 , coll. by Xiaoyu Peng. Measurements (mm). Female: BL 20.5, PL 3.6, HFL 9.0, OvL 5.0. Distribution. Guangxi (Jiuwanshan). Discussion. Lu et al. (2022) thought the specimen from Jiuwanshan, Guangxi was Apterolarnaca ( Bianigryllacris ) fallax (Liu & Bi, 2008) . However, after examining the morphological graphs of type specimens of Apterolarnaca ( Bianigryllacris ) fallax (Liu & Bi, 2008) , we thought the former was a new undescribed species. The new species differs from the latter by the posterior margin of female subgenital plate widely triangular in ventral view with a small angular in the middle instead of widely rounded ( Fig. 12G ). The morphological illustrations have been provided by Lu et al. (2022) in Fig. 5 . Etymology. The new species name drives from the posterior margin of female subgenital plate with a small angular.