A taxonomic review of the Oriental species of the genus Ancyronyx Erichson, 1847 (Coleoptera, Elmidae)

Abstract

The Orient species of the genus Ancyronyx Erichson are revised. It is shown that A. acaroides Grouvelle is correctly placed in the genus Ancyronyx. Five new species and one new subspecies are described: Ancyronyx acaroides cursor ssp. n. (Bali), A. johanni sp. n. (Siberut), A. malickyi sp. n. (Sumatra, Thailand, Borneo), A. procerus sp. n. (Borneo), A. sarawacensis sp. n. (Borneo) and A. schillhammeri sp. n. (Mindoro). A lectotype is designated for A. acaroides. A key to the world species is included. Ancyronyx constrictus Reitter is transferred to the genus Stenelmis Dufour.