Orphnebius ocularis, 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

Orphnebius ocularis nov.sp. ( Figs 32 and 142-143 )

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 2.7 mm. Body shiny, yellowish-red, head reddish-black, antennae with the three basal antennomeres yellowish-red. Second antennomere shorter than the first, third as long as the second, fourth to tenth weakly transverse. Eyes very large. Body devoid of reticulation. Puncturation of the head fine, sparse and absent on the longitudinal median band. Puncturation of the pronotum fine except for two large discal punctures. Free abdominal tergites concave and bare. Male fifth free tergite with strong puncturation that does not extend to reach the posterior margin, which is striate. Aedeagus: Figs 142-143.

C o m p a r a t i v e n o t e s: The aedeagus of the new species is similar to that of O. directus PACE, 2007 also from Borneo, but the eyes of the new species are enormous, so the postocular region is obsolete, whereas in O. directus the eyes are as long as the postocular region. The aedeagus of the new species is broadly curved to the ventral side, while that of O. directus is only siglthly curved. The internal sclerotised piece of the aedeagus of the new species is strong and long 0.13 mm long, that of O. directus is less strong and 0.1 mm long.

E t y m o l o g y: The name of the new species refers to its enormous eyes.

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.