Outachyusa borneensis, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 735

Outachyusa borneensis nov.sp. ( Figs 9 and 85 )

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). Paratypes: 2, same provenance as the holotype (CROU, MSNV).

D e s c r i p t i o n: Length 2.4-2.9 mm. Body opaque, brown, pronotum yellowishbrown, posterior margin of the elytra dirty yellow, antennae brown, legs pale yellow. Second antennomere as long as the first, third shorter than the second, fourth and fifth longer than wide, sixth and seventh as long as wide, eighth to tenth transverse. Eyes longer than the postocular region in dorsal view. The whole body covered with dense and fine granules and silky pubescence. Spermatheca: Fig. 85.

C o m p a r a t i v e n o t e s: The habitus of the new species is similar to that of O. velox (CAMERON, 1939) from India, of which I have examined the type series of 17 specimens labelled "Dehra Dun, Dr. Cameron, 14.X.1922, Brachyusa velox Cam. " (MNHL). The fourth to tenth antennomeres of the new species are shorter than those of O. velox , and the proximal portion of the spermatheca is almost rectilinear in the new species, strongly curved in O. velox .

E t y m o l o g y: The new species takes its name from Borneo.

Figures

Figs 1-12: Habitus. (1): Gyrophaena manus nov.sp., scale bar 2 mm; (2): Gyrophaena gigaedeagica nov.sp., scale bar 1.6 mm; (3): Gyrophaena osferox nov.sp., scale bar 1.1 mm; (4): Brachida danumensis nov.sp., scale bar 1.8 mm; (5): Aisthentusa flagellifera nov.sp., scale bar 1 mm; (6): Psephothetemusa rougemonti nov.sp., scale bar 1.6 mm; (7): Pseudatheta rougemonti nov.sp., scale bar 1.6 mm; (8): Demerinda sabahensis nov.sp., scale bar 2.5 mm; (9): Outachyusa borneensis nov.sp., scale bar 2.4 mm; (10): Atheta (Acrotona) nitidaespinae nov.sp., scale bar 2.2 mm; (11): Atheta (Poromicrodota) borneotibialis nov.sp., scale bar 2.4 mm; (12): Pelioptera danumensis nov.sp., scale bar 2.5 mm.

Figs 77-89: Spermatheca and aedeagus in lateral and ventral view. (77): Brachida danumensis nov.sp.; (78): Aisthentusa flagellifera nov.sp.; (79): Psephothetemusa rougemonti nov.sp.; (80-81): Pseudatheta rougemonti nov.sp.; (82-84); Demerinda sabahensis nov.sp.; (85): Outachyusa borneensis nov.sp.; (86-88): Atheta (Acrotona) nitidaespinae nov.sp.; (89): Atheta (Poromicrodota) borneotibialis nov.sp. Scale bars: 0.1 mm.