A New Genus of Oxypodini (Coleoptera, Staphylinidae, Aleocharinae) from the Palaearctic Region

摘要

Rhomphocallus gen. nov. (designated type species: Microglotta princeps Sharp, 1874) is described from the Palaearctic region and distinguished from similar oxypodine genera. The genus is characterized especially by dense and coarse puncturation of the forebody, slender antennae with sexual dimorphism, a distinctly transverse pronotum, very long tarsi, and above all a strongly developed beak-shaped ventral process of the adeagus. Three species are attributed to the genus: R. princeps (Sharp, 1874), comb, nov., R. maruyamai sp. nov., both from Japan, and R. bernhaueri (Sainte Claire-Deville, 1907), comb, nov., from Europe; both R. princeps and R. bern-haueri are transferred from Haploglossa Kraatz, 1856. Distinguishing characters are illustrated. The following synonymy is proposed: Haploglossa gentilis (Maerkel, 1844)=Microglotta longicor-nis Thomson, 1868, syn. nov. A lectotype is designated for Micmglotta princeps Sharp. Biogeo-graphic evidence suggests that R. bernhaueri is of Eastern Palaearctic origin. The distributions are mapped.