Abstract
A new species of genus Lycodon Boie, 1826 (Squamata: Colubridae) is described from Sichuan Province, China on the basis of three specimens. The new species, Lycodon liuchengchaoi sp. nov., is superficially similar to L.fasciatus and L. ruhstrati but can be distinguished from them by its divided anal plate and the large number and yellow colour of the rings around the body. A new key to the Lycodon of China is presented.