Chaetosogonocephus nobilis Pace 2014, nov.sp.

Chaetosogonocephus nobilis nov.sp. (Figs 18 and 104-105)

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 mm. Body shiny, brown, pygidium reddish, antennae and legs yellowish-red. Second antennomere shorter than the first, third longer than the second, fourth to tenth strongly transverse. Eyes very large in dorsal view. Body devoid of reticulation. Head impunctate. Granulation of the pronotum and elytra fine, that of the abdomen superficial and present only near the posterior margin of each free tergite. Male fifth free tergite with strong elongate punctures, male sixth free tergite covered with strong puncturation. Aedeagus: Figs 104-105.

C o m p a r a t i v e n o t e s: The habitus of the new species is very similar to that of C. borneensis PACE, 2008 also from Borneo. It differs in the eleventh antennomere being as long as the seven preceding antennomeres taken together, while in C. borneensis the eleventh antennomere is as long as the three preceding antennomeres. The form of the aedeagus is also different. That of the new species has two ventral lamina in ventral view, which are absent in the aedeagus of C. borneensis, and the internal sclerotised piece of the aedeagus of the new species is not hooked as that of C. borneensis.

E t y m o l o g y: The new species is called "noble" for its greater body size, suggesting superiority or nobility in comparison with the other species described in this paper.