New genus and new species of the subfamilyMetrodorinae from China (Orthoptera Tetrigidae) Author Lu, Xiang-Yi 0000-0001-9893-9304 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 Nomal University, Guilin, Guangxi 541004, China & 1121144759 @ qq. com; https: // orcid. org / 0000 - 0001 - 9893 - 9304 1121144759@qq.com 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 Nomal University, Guilin, Guangxi 541004, China text Zootaxa 2021 2021-04-22 4964 2 345 362 journal article 7070 10.11646/zootaxa.4964.2.6 69b283bd-3fe9-4c81-9274-3360f7f9ede3 1175-5326 4709549 94D93172-8AB5-48B0-B1B7-CECE813046A8 Genus Macromotettix Günther, 1939 http://orthoptera.speciesfile.org/Common/basic/Taxa.aspx?TaxonNameID=1101096 Macromotettix Günther, 1939: 154 ; Blackith, 1992: 110 ; Jiang & Zheng, 1998: 317 ; Zheng & Jiang, 2002: 235; Zheng, 2005: 139; Deng, et al ., 2007a: 129; Deng, et al ., 2007b, 1620: 63; Deng, 2016: 127 ; Deng, et al ., 2018: 422. Type species: Macromotettix quadricarinatus ( Bolívar, 1898 ) = Mazarredia quadricarinata Bolivar, 1898 , by subsequent designation. Descripion and differential diagnosis. Deng, Xin & Chen published a redescription in 2018, (see Deng, Xin & Chen 2018 ). This genus is similar to Bolivarittix Günther, 1939 , but differs from humeral apex ridge and lower margin of pronotum connected in the middle or behind middle of lower margin of pronotum (humeral apex ridge and lower margin of pronotum connected before middle of lower margin of pronotum in Bolivarittix Günther). It appears similar also to Macromotettixoides Zheng, Wei & Jiang, 2005 , but differs from the latter by posterior margin of each lateral lobe of pronotum with ventral sinus and tegminal (upper) sinus (posterior margin of each lateral lobe of pronotum only with ventral sinus in Macromotettixoides ). Composition and distribution. Twenty-four species are previously assigned to the genus Macromotettix Günther. In this study, three new species are described as new to science. Thus, to date, the genus Macromotettix currently includes twenty-seven species worldwide, distributed mainly in China , Vietnam , Indonesia , Solomon Islands and Samoan Islands ( Cigliano et al ., 2020 ).