A review of the genus Neorhamnusium Hayashi, 1976 (Coleoptera: Cerambycidae), with descriptions of three new species

摘要

A review is presented of the genus Neorhamnusium Hayashi, 1976, which until now has only been known from China, including Taiwan. The following three species are described as new: N. melano-cephalum sp.n. (Yunnan Province), N. shaanxiensis sp.n. (Shaanxi Province) and N. wuchaoi sp.n. (environs of Beijing). Detailed diagnoses of, as well as a key to, all five species of the genus are given. In the type species of the genus, N. taiwanum Hayashi et Ando in Hayashi, 1976, some morphological features areclarified. A thorough redescription of N. rugosipenne (Pic, 1939) is given. The genus is rediagnosed and rediscribed. Abundant colour illustrations, including of the holotypes of all species, are provided.