Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae) Author Pace, R. text Linzer biologische Beiträge 2014 2014-07-31 46 1 727 794 journal article 10.5281/zenodo.5306753 0253-116X 5306753 6EB57FAF-A54D-4A33-AB58-C03E7294FA00 Orphnebius acutus nov.sp. ( Figs 31 and 140-141 ) T y p e m a t e r i a l Holotype , Sabah , Danum Valley , B.R.L. , f.i.t., 14-16.II.2007 , G. de Rougemont leg. ( CROU ). D e s c r i p t i o n: Length 2-2.2 mm . Body shiny, yellowish-red, including antennae and legs. Second antennomere shorter than the first, third as long as the second, fourth to tenth strongly transverse. Eyes longer than the postocular region in dorsal view. Body devoid of reticulation. Puncturation of the head indistinct, that of the pronotum reduced to four punctures, two discal and two lateral; puncturation of the elytra fine and very superficial. Free abdominal tergites concave and bare. Male fifth free tergite with strong elongate punctures. Aedeagus: Figs 140-141. C o m p a r a t i v e n o t e s: The apex of the aedeagus of the new species bears a ventral preapical tooth. The only species known with a similar tooth on the aedeagus is O. vorax PACE, 2000 from Thailand , but in that species the tooth is on the dorsal preapical region and not the ventral side as in the new species. The length of the aedeagus of the new species is of 0.78 mm , that of O. vorax 0.67 mm . E t y m o l o g y: The name of this new species is derived from the acute apex of the aedeagus, as seen in both lateral and ventral views.