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 9. Formosatettix longwangshanensis Zheng, 1998 ( Figs. 11 , 24 K-L) Formosatettix longwangshanensis Zheng, 1998 in Wu, H. [Ed.], 1998: 51 [description] ( holotype —♁, China : Zhejiang prov. , Anji County, Longwangshan, in IZSNU, examined); Deng, 2016: 281 ; Wei, Deng & Lu, 2019: 1008 . Formosatettix tianmushanensis Zheng & Li, 2001: 162 [description] ( holotype — ♀ , China : Zhejiang prov. , Linan County, Tianmushan, in CLSNU, not examined); Zheng, Shi & Yin, 2015: 148 ; Deng, 2016: 274 ; Wei, Deng & Lu, 2019: 1004 , 1019; syn. nov. Type material examined. Holotype Formosatettix longwangshanensis , ♁, China : Zhejiang prov. , Anji County , Longwangshan , 20 July 1995 , in IZSNU . Other material examined. topotypes Formosatettix longwangshanensis : 10♁ 8♀ , China : Zhejiang prov. , Anji County , Longwangshan , 30 July 2019 , EMHU ; Topotypes Formosatettix tianmushanensis : 7♁ 15♀ , China : Zhejiang prov. , Linan County , Tianmushan , 22 July 2019 , EMHU . Notes. Not only did we examine the holotype of Formosatettix longwangshanensis and compared with type specimen pictures and the description of Formosatettix tianmushanensis ( Zheng & Li, 2001 ) , but also we compared the topotypes of these two species and found that morphology and distribution are completely identical in both taxa. Thus, we synonymise F. tianmushanensis with F. longwangshanensis . The two taxa are conspecific and characterized by the width of the vertex between the eyes 2.0–2.2 times the width of a compound eye; anterior margin of pronotum obtuse protruding; median carina of pronotum arch-like; lower margin of hind process distinctly curved; lower carinae of fore and mid femora straight or slightly sinuate. Distribution. China ( Zhejiang ).