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Taxonomic revision of Phaesticus Uvarov and synonymy with Flatocerus Liang & Zheng syn. nov. (Orthoptera: Tetrigidae)

The genus Phaesticus Uvarov, 1940 is revised here with updated generic characteristics and a key to the species. New synonyms and a new combination are proposed: 1) Phaesticus Uvarov, 1940 = Flatocerus Liang & Zheng, 1984 syn. nov. ; 2) P. mellerborgi (Stål, 1855) = P. insularis (Hancock, 1907) syn. nov., = P. carinatus Zheng, 1998 syn. nov., = P. azemii Mahmood, Idris & Salmah, 2007 syn. nov., = F. brachynotus Liang, Chen & Chen, 2008 syn. nov., = P. uvarovi Storozhenko & Dawwrueng, 2015 syn. nov. ; 3) P. moniliantennatus (Günther, 1940) = F. nankunshanensis Liang & Zheng, 1984 syn. nov., = F. wuyishanensis Zheng, 1991 syn. nov., = F. guizhouensis Wang, 1992 syn. nov., = F. daqingshanensis Zheng & Jiang, 1998 syn. nov., = F. dentifemura Zheng, 2003 syn. nov. ; 4) P. hainanensis (Liang, 1988) comb. nov. = F. hainanensis Liang, 1988. Intraspecific variation in the lengths of the hind pronotal processes and hind wings in the family Tetrigidae are discussed in detail.

Orthoptera, Tetrigoidea, pygmy grasshopper, new combination, intraspecific variation, China

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