A review of the Caryanda tamdaoensis species-group (Orthoptera: Acrididae), with description of a new species from Yunnan, China Author Song, Hong 0000-0002-2486-8889 College of Agriculture and Biological Science, Dali University, Dali, Yunnan 671003, China. 1974433042@qq.com Author Yin, Zhi-Long 0000-0003-3777-0714 College of Agriculture and Biological Science, Dali University, Dali, Yunnan 671003, China. yinzhilong.1998@qq.com Author Storozhenko, Sergey Yu. Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia. Author Mao, Ben-Yong College of Agriculture and Biological Science, Dali University, Dali, Yunnan 671003, China. & Research Center for Northwest Yunnan Biodiversity, Dali University, Dali, Yunnan 671003, China. text Zootaxa 2024 2024-07-01 5474 4 412 426 http://dx.doi.org/10.11646/zootaxa.5474.4.4 journal article 299660 10.11646/zootaxa.5474.4.4 c2fe18bf-4812-4d13-a722-4cbfbdd63c9b 1175-5326 12681324 D2AB9897-0237-4D6B-B961-3A4ADD4AEC4D Genus Caryanda Stål, 1878 Species group Caryanda tamdaoensis Differential diagnosis. Caryanda tamdaoensis species-group shares the following diagnostic characters: male supra-anal plate nearly pentagonal; male cerci conical; apical penis valves of phallic complex lathy, upcurved and with a beak-shaped apex in lateral view; in females ventral basivalvular sclerite with inner margins always contiguous with each other. Composition. This species group consists of five species. A key to species and subspecies is given below. Key to the species and subspecies of Caryanda tamdaoensis species-group 1. Hind tibiae entirely black in male or blue in female; posterior margin of female subgenital plate concave in middle with two obtuse dentes.............................................................. C. nigrotibia Mao, Xu & Li, 2017 - Hind tibiae blue except base black in both sexes; posterior margin of female subgenital plate not as above.............. 2 2. Hind femora partially red and partially yellow; outer lophi of epiphallus parallelogram in posterior view................ 3 - Hind femora mainly green; outer lophi of epiphallus triangular in posterior view, distally tapering..................... 5 3. Hind femora with yellowish green basal half and reddish apical half in both sexes; posterior margin of female subgenital plate roundly projected at the middle; apical valves of penis and cingular valves long, curved upward, S-shaped....................................................................................... C. tamdaoensis Storozhenko, 1992 - Hind femora either yellowish brown (rare grayish green) or almost red in both sexes; female subgenital plate with posterior margin undulated, medially concaved with two blunt teeth; apical valves of penis and cingular valves relatively short, curved upward, but not S-shaped............................................................................... 4 4. Body size larger, body length 21–23 mm in male or 27–30 mm in female; hind femora yellowish brown (rare grayish green) without any red or pink parts in both sexes.................. C. azurea azurea Gorochov & Storozhenko, 1994 , stat. nov. - Body size smaller, body length 17.7–17.9 mm in male or 20.7 mm in female; hind femora almost red but base yellowish green in both sexes.............................................. C. azurea colourfula Mao, Ren & Ou, 2011 , stat. nov. 5. Abdominal tergites darkish green with 2 black longitudinal stripes in male; hind femora with 3/5 basal parts yellowish green and the apical 2/5 orange; female subgenital plate with posterior margin roundly projected at the middle...................................................................................... C. zhenyuanensis Mao, Xu & Li, 2017 - Abdominal tergites black with 3 yellow longitudinal stripes in male; hind femora green with or without a yellow preapical ring in male, or green with or without a red preapical ring in female; female subgenital plate broad, near rectangular, median area concaved, posterior margin nearly straight but weakly excised near both sides....................................................................................................... C. hongheensis Mao, Yin & Song, sp. nov.