Revised concept of the genus Euryporus Erichson (Coleoptera, Staphylinidae, Staphylininae) and phylogenetic significance of Staphylinini from New Guinea

Abstract. The Staphylinini rove beetle genus Euryporus Erichson from the subtribe Quediina is restricted to include only three species from the Western Palearctic region: Euryporus picipes (Paykull, 1800), Euryporus aeneiventris (Lucas, 1846), and Euryporus princeps Wollaston, 1864. Euryporus argentatus Fauvel, 1881, Euryporus warisensis Last, 1987 and Euryporus multicavus Last, 1980, which do not even belong to the subtribe Quediina, are excluded fromthe genus. Of these, two were transferred to different genera: Tympanophorus argentatus (Fauvel, 1881), comb. nov., from Sumatra;and Hesperus warisensis (Last, 1987), comb. nov.,from New Guinea. “Euryporus” multicavus could not be placed to any of the described genera of Staphylinini and is left as incertae sedis pending a broader study of the relevant fauna of this tribe in New Guinea and adjacent regions. The taxonomic history of Euryporus is reviewed, and an updated diagnosis of this genus is provided.