A New Unusual Subgenus of the Genus Chrysolina (Coleoptera: Chrysomelidae: Chrysomelinae) from the Highland Forests of China, Yunnan Province

A new subgenus of the genus Chrysolina Motschulsky, 1860, endemic to Yunnan Province of China, Ch. (Volosatik subgen. nov.) is described. All species inhabit highland forests. Seven species, including four species new to science, are recognized: Chrysolina fascinatrix Lopatin, 1998, Ch. liqingzhaoae Daccordi et Ge, 2011, Ch. wangi Lopatin, 2005, Ch. igori sp. nov., Ch. marinae sp. nov., Ch. genriki sp. nov., and Ch. ilyakabaki sp. nov. The representatives of this new subgenus are characterised by a small, broadly oval, convex, shining body with metallic dorsum, with maxillary palpus narrow, similar in both sexes, with pronotal lateral impressions wide and shallow or obsolete, without numerous large punctures, with elytral puncture rows paired, mostly regular, intervals flat, with tarsomeres 1–3 with entire sole, rather narrow in both sexes, with aedeagus bearing sensilla of different types ventro-laterally near apex, flagellum narrow. Photographs of habitus and male aedeagus are presented.