Contributions to the knowledge of the genus Horaeomorphus Schaufuss (Coleoptera, Staphylinidae, Scydmaeninae) in mainland China

Abstract. Five new species of the ant-like stone beetle genus Horaeomorphus Schaufuss (Scydmaeninae: Glandulariini) from China are described: Horaeomorphus hainanicus sp. n., Horaeomorphus biwenxuani sp. n., Horaeomorphus pengzhongi sp. n., Horaeomorphus hujiayaoi sp. n. and Horaeomorphus punctatus sp. n. The previously unknown male of Horaeomorphus chinensis Franz, 1985 is now discovered, and its aedeagus and metatrochanter are illustrated. The latter species is newly recorded from Zhejiang. Three females from Guangxi are also recorded, but their identity remains unconfirmed until associated males become available. A key to Horaeomorphus of mainland China is included.