Drusilla profunda, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 757

Drusilla profunda nov.sp. ( Figs 45 and 183 )

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 3.93 mm. Body shiny, reddish, elytra reddish-brown, abdomen yellowish-red, antennae reddish-brown with the two basal antennomeres, the base of third and the eleventh yellowish-red, legs yellowish-red. Second antennomere shorter than the first, third longer than the second, fourth as long as wide, fifth to tenth transverse. Eyes very large in dorsal view. Fore-body devoid of reticulation, that of the abdomen very transverse and evident. Puncturation of the head fine and very superficial, that of the abdomen absent. Granulation of the pronotum and elytra fine, very superficial and not very salient. There is a salient tubercle between the antennae. Median sulcus of the pronotum shallow and ending in a deep posterior dimple.

C o m p a r a t i v e n o t e s: In the form of the spermatheca, the new species is similar to D. semimonticola PACE, 2008 also from Borneo. It differs in the bicoloured abdomen, whereas in D. semimonticola the abdomen is uniformly yellowish-red, in the deep apical umbilicus of the distal bulb of the spermatheca, which is short in D. semimonticola , and in the proximal bulb of the spermatheca which is narrower (0.013 mm), than the maximum width (0.052 mm) of the distal bulb, whereas in D. semimonticola the proximal bulb of the spermatheca is as wide (0.066) as the maximum width of the distal bulb.

E t y m o l o g y: The new species is named "deep" in reference to the deep apical umbilicus of the distal bulb of the spermatheca.

Figures

Figs 34-45: Habitus. (34): Orphnebius concavus nov.sp., scale bar 3.4 mm; (35): Orphnebius parabigladiosus nov.sp., scale bar 3.9 mm; (36): Lambanus borneensis nov.sp., scale bar 6 mm; (37): Lambanus rougemonti nov.sp., scale bar 7.1 mm; (38): Drusilla divergens nov.sp., scale bar 7.1 mm; (39): Drusilla bulbosa nov.sp., scale bar 4.6 mm; (40): Drusilla serrulae nov.sp., scale bar 4.6 mm; (41): Drusilla borneoacuta nov.sp., scale bar 6.9 mm; (42): Drusilla caputserpentis nov.sp., scale bar 7.1 mm; (43): Drusilla bilobata nov.sp., scale bar 5 mm; (44): Drusilla sabahensis nov.sp., scale bar 3.9 mm; (45): Drusilla profunda nov.sp., scale bar 3.9 mm.

Figs 181-194: Aedeagus in lateral and ventral view, spermatheca, sixth free urotergum of male. (181-182): Drusilla sabahensis nov.sp.; (183): Drusilla profunda nov.sp.; (184): Drusilla borneoclara nov.sp.; (185-188): Drusilla rougemontiana nov.sp.; (189-191): Drusilla danumensis nov.sp.; (192-194): Drusilla borneoapicalis nov.sp. Scale bars: 0.1 mm.