Taxonomic notes on Chinese Cercyon: description of a new species, new synonyms, and additional faunistic records (Coleoptera: Hydrophilidae: Sphaeridiinae)
Abstract
A new species, Cercyon hanseni sp. nov., is described from Jiangxi and Guizhou Provinces, China. Based on a study of type material, the following synonymies are proposed for the species occurring in China: Cercyon signifer Hebauer, 2002 = C. (s. str.) berlovi Shatrovskiy, 1999, Cercyon guangxiensis Wu et Pu, 1995 = Cercyon (s. str.) quisquilius (Linnaeus, 1761), Cercyon nigrostriatus Wu et Pu, 1995 = Cercyon (Clinocercyon) lineolatus (Motschulsky, 1863), Cercyon vicinaloides dʼOrchymont, 1925, and Cercyon tropisternus Wu et Pu, 1995 = Cercyon (Paracycreon) laminatus Sharp, 1873, and Cercyon linearis Wu et Pu, 1995 = Cercyon (Paracycreon) subsolanus Balfour-Browne, 1939.
A checklist of all Cercyon species recorded from China is presented, along with a tentative identification key.