Abstract
A new genus Hirashimanymus of the tribe Pselaphini (Pselaphidae, Pselaphinae) and two new species H. schistodactyroides and H. babai are described and illustrated from southwest Japan and Taiwan. This paper presents a new genus of the tribe Pselaphini and two new species from Ishigaki Is., southwest Japan and Taiwan. The name of the new genus is dedicated with gratitude to Prof. Emer. Yoshihiro Hirashima for his continuous encouragement and guidance. Hirashimanymus gen. nov. Type species : Hirashimunymus schistodactyroides sp. nov. Body medium-sized, broadened posteriorly, coarsely punctate in dorsal surface. Head weakly narrowed anteriorly, clypeogenal areas weakly laminate, frons broadly nodulate, vertex broad, with a pair of indistinct dorsal tentorial pits ; eyes ovoid, convex ; antennae elongate, very irregularly segmented in length, densely with coarse punctures, each segment subcylindrical ; maxillary palpi 3-segmented, 3rd segment largest, thick and rounded in basal part, tapered toward apex, with a short spine or denticle. Pronotum round-sided, simple on dorsal surface ; elytra broadened posteriorly, humeri weakly expanded in male, almost flat in female, each elytron with 4 basal foveae ; hind wing developed in male, reduced in female ; legs slender, femora densely with coarse punctures, tibiae slender, each with a few suberect hairs, tarsi large, 3rd segment largest, lobate and rounded in ventroapical part, with a large, scythe-shaped claw. Abdomen shorter than elytra, 4th segment largest, with a transverse groove in basal part, 5th to 8th segments shortened successively. The genus Hirashimanymus nov. is classified into the tribe Pselaphini by the single claw of the tarsus and the large terminal segment of the maxillary palpus. This genus is conspicuously characterized by the antenna which is irregularly segmented in length, the third segment of maxillary * Contribution from the Entomological Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka (Ser. 4, No. 6).
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