Description of a new species of Ceruchus MacLeay (Coleoptera, Lucanidae), with taxonomic notes on the Chinese species of the genus

The generic characters of the stag beetle genus Ceruchus MacLeay are comprehensively reviewed and refined based on the examination of type material of most Chinese species. In this study, one new species, Ceruchus ahualuo Huang, Liu & Wan, sp. nov . is described and illustrated from Yunnan, China. In addition, an updated diagnostic key to all known Chinese species of Ceruchus is provided, together with a distribution map of the genus in China.