Two new species of the genus Macromotettix Günther, 1939 (Orthoptera: Tetrigidae, Metrodorinae) from China, with a key to the species of the genus Author Deng, Wei-An Author Xin, Lei Author Wei, Qiao Author Chen, Ya-Zhen text Zootaxa 2018 2018-01-12 4370 4 421 430 journal article 31009 10.11646/zootaxa.4370.4.7 9f3e7a0e-4d40-44e9-9637-76ca79ef314a 1175-5326 1146489 27D7F319-7CF8-45DE-8212-2C44AAFB9D09 Key to the species of Macromotettix Günther, 1939 1. Body slender, hind process of pronotum far surpassing behind apex of hind femur................................... 2 - Body stubby, hind process of pronotum not reaching, reaching or slightly surpassing apex of hind femur................ 5 2. Width of vertex as broad as the width of an eye; lateral keels of prozona constricted backwards; hind wings extending beyond the caudal end of pronotum. Distribution in China ( Yunnan )............................. M. longipennis Zheng, 1998 - Width of vertex narrower than the width of an eye; lateral keels of prozona parallel; hind wings not reaching or reaching the caudal end of pronotum................................................................................. 3 3. Upper margin of pronotum straight in profile; lower margins of middle femora slightly undulate; hind wings not reaching the caudal end of pronotum. Distribution in Vietnam ( Tonkin )............................. M. tonkinennis Günther, 1939 - Upper margin of pronotum undulate before shoulders in profile; lower margins of middle femora straight; hind wings reaching the caudal end of pronotum.............................................................................. 4 4. Width of vertex distinct narrower than the width of an eye (10:18); antenna inserted below lower margins of eyes; disc of pro- notum smooth. Distribution in Indonesia ( Sumatra )............................. M. quadricarinatus ( Bolivar, 1898 ) - Width of vertex slightly narrower than the width of an eye (15:18); antenna inserted between lower margins of eyes; disc of pronotum with numerous small tubercles. Distribution in China ( Taiwan) ................ M. sokutsuensis ( Karny, 1915 ) 5. Frontal costa before eyes not visible......................................................................6 - Frontal costa before eyes visible, vertex and frontal costa forming a round or obtuse shape........................... 10 6. Hind wings strongly reduced and just reaching the base of hind femora........................................... 7 - Hind wings elongated and extending beyond the middle of hind femora........................................... 8 7. Disc of pronotum coarse, with numerous protuberances; disc of pronotum concave between shoulders; lower margins of fore and middle femora slightly undulate. Distribution in China ( Sichuan ).................... M. sichuanensis Deng sp. nov - Disc of pronotum smooth; disc of pronotum convex between shoulders; lower margins of fore and middle femora straight. Dis- tribution in China ( Guangxi )........................................ M. xinganensis Zheng, Zhang & Dang, 2009 8. Width of vertex narrower than the width of an eye; upper margin of pronotum straight in profile; hind wings reaching the cau- dal end of pronotum. Distribution in Solomon Islands ( Guadalcanal )................... M. solomonennis Günther, 1972 - Width of vertex wider than or equal to the width of an eye; upper margin of pronotum undulate in profile; hind wings not reaching the caudal end of pronotum...................................................................... 9 9. Disc of pronotum smooth; lower margins of middle femora straight. Distribution in Samoan Islands................................................................................................ M. compactus ( Chopard, 1929 ) - Disc of pronotum coarse; lower margins of middle femora undulate. Distribution in China ( Hunan and Guangxi )............................................................................... M. luoxiaoshanensis Zheng & Fu, 2000 10. Width of vertex 1.5–2.0 times the width of an eye........................................................... 11 - Width of vertex slightly wider than or equal to or narrower than the width of an eye................................ 13 11. Lateral keels of prozona parallel; upper margin of pronotum undulate, median carina high and lamellar before shoulders in profile and suddenly depressed behind shoulders; hind wings strongly reduced and just reaching the base of hind femora. Distribution in China ( Sichuan )....................................................... M. undulatifemura Deng sp. nov - Lateral keels of prozona constricted backwards; upper margin of pronotum slightly undulate, median carina low in profile; hind wings elongated and extending beyond the middle of hind femora..........................................12 12. Width of vertex 1.5 times the width of an eye; antenna inserted between lower margins of eyes; with abbreviated carinae between shoulders. Distribution in China ( Yunnan and Guangxi )......................... M. torulosinota Zheng, 1998 - Width of vertex 2.0 times the width of an eye; antenna inserted below lower margins of eyes; without abbreviated carinae between shoulders. Distribution in China ( Shaanxi )........................... M. qinlingensis Zheng, Wei & Li, 2009 13. Vertex and frontal costa forming an obtused angular in profile................................................. 14 - Vertex and frontal costa forming a round shape in profile..................................................... 24 14. Hind process of pronotum not reaching apex of hind femur.................................................... 15 - Hind process of pronotum reaching or slightly surpassing apex of hind femur.....................................21 15. Lateral keels of prozona parallel......................................................................... 16 - Lateral keels of prozona constricted backwards.............................................................19 16. Disc of pronotum smooth; hind wings extending beyond the caudal end of pronotum; hind tibia black. Distribution in China ( Guangxi )............................................................ M. yaoshanensis Zheng & Jiang, 2000 - Disc of pronotum coarse, with numerous protuberances; hind wings not reaching the caudal end of pronotum; hind tibia not black.............................................................................................. 17 17. Width of vertex wider than the width of an eye; with abbreviated carinae between shoulders. Distribution in China ( Guangxi )................................................................................... M. zhengi Deng, 2016 - Width of vertex equal to or narrower than the width of an eye; without abbreviated carinae between shoulders........... 18 18. Width of vertex 1.1 times the width of an eye; upper margin of pronotum undulate in profile; lower margins of middle femora straight. Distribution in China ( Guangxi )..................................... M. tianlinensis Liang & Jiang, 2004 - Width of vertex 0.7 times the width of an eye; upper margin of pronotum convex before shoulders in profile; lower margins of middle femora slightly undulate. Distribution in China ( Guizhou and chongqing)............. M. brachyptera Deng, 2016 19. Disc of pronotum smooth; width of middle femora wider than the width of visible part of tegmina. Distribution in China ( Yunnan ).............................................................. M. wangxiangtaiensis Zheng & Ou, 2010 - Disc of pronotum coarse, with numerous protuberances; width of middle femora narrower than or equal to the width of visible part of tegmina...................................................................................... 20 20. Head not exerted above upper level of pronotum; width of middle femora narrower than the width of visible part of tegmina. Distribution in China ( Hunan )................................................... M. nigritibis Zheng & Fu, 2005 - Head exerted above upper level of pronotum; width of middle femora equal to the width of visible part of tegmina. Distribution in China ( Guangxi ).................................................... M. convexa Deng, Zheng & Zhan, 2010 21. Lateral keels of prozona constricted backwards............................................................. 22 - Lateral keels of prozona parallel......................................................................... 23 22. In profile, frontal costa without concave between lateral ocelli; upper margin of pronotum slightly convex before shoulders and straight behind shoulders in profile; lower margins of middle femora undulate. Distribution in China ( Guangxi )................................................................................. M. longtanensis Zheng & Jiang, 2003 - In profile, frontal costa distinctly concave between lateral ocelli; upper margin of pronotum undulate in profile; lower margins of middle femora straight. Distribution in China ( Guangxi ).................. M. guangxiensis Deng, Zheng & Wei, 2007 23. Width of vertex narrower than the width of an eye; with abbreviated carinae between shoulders of pronotum; mid keel of dorsal side of hind femur serrated, with large teeth. Distribution in China ( Yunnan )...... M. wuliangshana Zheng & Ou, 2003 - Width of vertex 1.3 times the width of an eye; without abbreviated carinae between shoulders of pronotum; mid keel of dorsal side of hind femur smooth. Distribution in China ( Guangxi )............................ M. nigritubercle Zheng, 2006 24. Hind wings not reaching the caudal end of pronotum, and reaching five sixths of lower margin of pronotum; mid keel of dorsal side of hind femur smooth; hind femur brown. Distribution in China ( Yunnan ).............. M. brachynota Zheng, 1998 - Hind wings reaching the caudal end of pronotum; mid keel of dorsal side of hind femur serrated; lower side of outer part of hind femur black. Distribution in China ( Guangxi )........................... M. serrifemoralis Zheng & Jiang, 2002