title: A key to species of the genus Gastroserica Brenske of the China (Coleoptera, Scarabaeidae, Sericini), with the description of two new species and two new records for China.
abstract: Based on a revision of the material housed in Chinese collections and a key to species of Gastroserica of China is provided. Two new species are described, habitus photographs, and illustrations of the genitalia are given: Gastroserica nigrofasciatasp. n. (from China: Guangxi and Guizhou Prov.), Gastroserica yunnanensissp. n. (from China: Yunnan Prov.). Besides, illustrations of the genitalia of species mentioned in the key are provided. Additional distribution records of the Gastroserica species including an updated distribution map are given.
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Box 92, No. 1, Beichen West Road, Chaoyang District, Beijing, 100101, P.R. China.
authors.forename: Wan-Gang
authors.initials: WG
authors.lastname: Liu
authors.forename: Dirk
authors.initials: D
authors.lastname: Ahrens
authors.forename: Ming
authors.initials: M
authors.lastname: Bai
authors.forename: Xing-Ke
authors.initials: XK
authors.lastname: Yang