Review of the genus Formosatettix Tinkham (Orthoptera: Tetrigidae) with description of new taxa, new synonymy and an updated key to species Author Deng, Wei-An Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541006, China & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi 541006, China College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China & School of Chemistry and Bioengineering, Hechi University, Yizhou, Guangxi 546300, China Author Luo, Jie-Ling 0000-0002-9378-5243 Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541006, China & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi 541006, China College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China & luojl 0121 @ 163. com; https: // orcid. org / 0000 - 0002 - 9378 - 5243 Author Huang, Chao-Mei 0000-0003-1046-1348 Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541006, China & Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi 541006, China College of Life Science, Guangxi Normal University, Guilin, Guangxi 541004, China & hcm 2337244016 @ 163. com; https: // orcid. org / 0000 - 0003 - 1046 - 1348 Author Lin, Li-Liang 0000-0002-9972-4732 College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi 710062, China. & ll _ lin @ 163. com; https: // orcid. org / 0000 - 0002 - 9972 - 4732 text Zootaxa 2023 2023-01-13 5228 3 201 243 journal article 226118 10.11646/zootaxa.5228.3.1 cf926743-58e3-46e4-8b3a-b5430c228fca 1175-5326 7532348 CF7244F1-F2FA-4435-BD96-5492BC1AF6B8 6. Formosatettix huapingensis Zheng & Jiang, 1997 ( Figs. 8 , 9 , 24F, 24G, 24H ) Formosatettix huapingensis Zheng & Jiang, 1997b: 151 [description] ( holotype — ♀ , China : Guangxi prov. , Longsheng County, Huaping, in IZSNU, examined; paratype —♁, same data, in IZSNU, examined); Jiang & Zheng, 1998: 348 ; Zheng, 2005: 364; Deng, Zheng & Wei. 2007b: 324; Deng, 2016: 281 ; Wei, Deng & Lu, 2019: 1008 . Formosatettix nanlingensis Zheng & Cao, 2011: 98 [description] ( holotype — ♀ , China : Guangdong prov. , Ruyuan County, Nanling, in IZSNU, examined; paratype —♁, same data, in IZSNU, examined); Deng, 2016: 283 ; Wei, Deng & Lu, 2019: 1010 ; syn. nov. Formosatettix undulatifemura , Zheng, 2012: 16 [description] ( holotype —♁, China : Guangdong prov. , Ruyuan County, Nanling, in IZSNU, examined); Deng, 2016: 280 ; Wei, Deng & Lu, 2019: 1007 ; syn. nov. Formosatettix guposhanensis Deng, 2019 in Wei, Deng & Lu, 2019: 1016 [description] ( holotype — ♀ , China : Guangxi prov. , Hezhou ( Guposhan ), in EMHU., examined; paratypes — 3♀ , same data, in EMHU, examined); syn. nov. Type material examined. Formosatettix huapingensis : holotype , ♀ , China : Guangxi prov. , Longsheng County , Huaping , 05 September 1962 , in IZSNU ; Paratype , 1♁, same data, in IZSNU . Formosatettix nanlingensis : holotype , ♀ , China : Guangdong prov. , Ruyuan County , Nanling , 24 August 2010 , in IZSNU ; paratype , 1♁, same data. Formosatettix undulatifemura : holotype , ♁, China : Guangdong prov. , Ruyuan County , Nanling , 24 August 2010 , in IZSNU . Formosatettix guposhanensis : holotype , ♀ , China : Guangxi prov. , Hezhou ( Guposhan ), 21 August 2017 , in EMHU ; paratypes , 3♀ , same data, in EMHU . FIGURE 8. Formosatettix huapingensis Zheng & Jiang, 1997 . Type material: A—Holotype, lateral view; B—Paratype, lateral view; C and D—Labels. Holotype of Formosatettix nanlingensis Zheng & Cao, 2011 , syn. nov. : E—Dorsal view, F—Lateral view, G—Labels. FIGURE 9. Nymphs and adult of Formosatettix huapingensis Zheng & Jiang, 1997 . Holotype of Formosatettix undulatifemura , Zheng, 2012 , syn. nov. (Nymphs): A—Lateral view, B—Dorsal view, C—Labels. Holotype of Formosatettix guposhanensis Deng, 2019 , syn. nov. (adult): D—Lateral view, E—Labels. Notes. We examined the type specimens of Formosatettix huapingensis , F. nanlingensis , and F. guposhanensis and found that the structures and coloration of the body are the same in these three taxa. Therefore, we consider F. nanlingensis and F. guposhanensis as synonyms of F. huapingensis . We also examined the type specimens of F. nanlingensis and F. undulatifemura and found that body structures, type locality (Nanling National Forest Park), and body coloration were the same in both taxa. The type specimen of F. undulatifemura was determined to be a nymph (antegenicular teeth of the dorsal margin before the knee of the hind femora were absent ( Fig. 9A )). Thus, F. undulatifemura is considered to be a synonym of F. huapingensis . These taxa are conspecific and characterized by the width of the vertex between the eyes being 2.2–2.5 times the width of the compound eye; the anterior margin of pronotum is truncate or slightly arcuate protruding; the lower margin of the hind process is straight and the lateral carinae of metazoan is also slightly straight; the lower carinae of fore and mid femora is straight or slightly sinuate. Distribution. China ( Guangdong and Guangxi ).