A new species and an additional faunistic record of Scydmaenus Latreille (Coleoptera: Staphylinidae: Scydmaeninae) from Shanghai, China

A new member of Scydmaeninae, Scydmaenus shanghaicus Yin & Zhou, sp. nov., is described from material collected in Chongming and Jiading, Shanghai. This species is distinguished from its East Asian congeners primarily by the markedly slender aedeagus and the specific configuration of the endophallus armature. Illustrations of the habitus and major diagnostic characters are provided to facilitate reliable identification.

Additionally, the occurrence of Scydmaenus vestitus (Sharp) in Shanghai is reported. These discoveries further suggest the potential of urban biodiversity surveys in revealing cryptic arthropod richness within anthropogenic ecosystems.