Orphnebius acutissimus, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 749-750

Orphnebius acutissimus nov.sp. ( Figs 33 and 144-145 )

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 3.6 mm. Body shiny, reddish, antennae reddish with the three basal antennomeres and apical half of the eleventh yellowish-red, legs yellowishred. Second antennomere shorter than the first, third longer than the second, fourth to tenth strongly transverse. Eyes enormous. Body devoid of reticulation. Pronotum impunctate and devoid of granulation. Pronotum with only two strong discal punctures. Granulation of the elytra fine and sparse. Free abdominal tergites concave and bare. Male fifth free tergite with evident longitudinal striae. Aedeagus: Figs 144-145.

C o m p a r a t i v e n o t e s: The apex of the aedeagus is acute in ventral view, unlike in any of the other species known from Borneo.

E t y m o l o g y: The name of the new species refers to the apex of the aedeagus which is very acute in ventral view.

Figures

Figs 25-33: Habitus. (25): Tetrabothrus femoralis nov.sp., scale bar 5.9 mm; (26): Strabocephalium borneorum nov.sp., scale bar 5.9 mm; (27): Keratodegnathus rougemonti nov.sp. male, scale bar 5.9 mm; (28): Keratodegnathus rougemonti nov.sp. female, scale bar 5.5 mm; (29): Keratodegnathus mirabilis nov.sp., scale bar 3.3 mm; (30): Myrmecopella borneensis nov.sp., scale bar 3.4 mm; (31): Orphnebius acutus nov.sp., scale bar 3.6 mm; (32): Orphnebius ocularis nov.sp., scale bar 2.7 mm; (33): Orphnebius acutissimus nov.sp., scale bar 3.6 mm.

Figs 135-145: Head in dorsal, lateral and frontal view, aedeagus in lateral and ventral view. (135- 137): Keratodegnathus mirabilis nov.gen., nov.sp.; (138-139): Myrmecopella borneensis nov.sp.; (140-141): Orphnebius acutus nov.sp.; (142-143): Orphnebius ocularis nov.sp.; (144-145): Orphnebius acutissimus nov.sp. Scale bars: 0.1 mm.