Chaetosogonocephus ruficollis, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 743

Chaetosogonocephus ruficollis nov.sp. ( Figs 20 and 108 )

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 3.63 mm. Body shiny, reddish, head and pronotum yellowish-red, antennae brown with the two basal antennomeres and the base of third yellowish-red, legs reddish. Second antennomere shorter than the first, third longer than the second, fourth to tenth transverse, eleventh as long as the three preceding antennomeres taken together. Eyes very large in dorsal view. Body devoid of reticulation. Head devoid of puncturation or granulation, except a large puncture near the posterior margin of each eye. Puncturation of the pronotum evident. Granulation of elytra fine and salient. Free abdominal tergites impunctate and devoid of granulation. Female fifth free tergite with striae along the whole posterior margin, female sixth free tergite strongly punctate.

C o m p a r a t i v e n o t e s: The antennae and the spermatheca of the new species are similar to those of C. borneensis PACE, 2008 also from Borneo. The new species differs in the greater length of the spermatheca, (0.24 mm; in C. borneensis 0.15 mm), and in the proximal portion of the spermatheca forming a complete coil, whereas in C. borneensis the corresponding coil is incomplete.

E t y m o l o g y: The new species is named "red neck" in reference to its reddish pronotum.

Figures

Figs 13-24: Habitus. (13): Pelioptera plenitudinis nov.sp., scale bar 2.1 mm; (14): Pelioptera irregularis nov.sp., scale bar 3 mm; (15): Dikraspedella borneensis nov.sp., scale bar 2.5 mm; (16): Doryloxenus borneensis nov.sp., scale bar 1.5 mm; (17): Mesomegaskela rougemonti nov.sp., scale bar 5.3 mm; (18): Chaetosogonocephus nobilis nov.sp., scale bar 3 mm; (19): Chaetosogonocephus minor nov.sp., scale bar 1.9 mm; (20): Chaetosogonocephus ruficollis nov.sp., scale bar 3.6 mm; (21): Chaetosogonocephus danumensis nov.sp., scale bar 2.3 mm; (22): Chaetosogonocephus luteicollis nov.sp., scale bar 1.9 mm; (23): Malayloeblius borneensis nov.sp., scale bar 2.5 mm; (24): Rougemontius borneensis nov.sp., scale bar 3 mm.

Figs 101-116: Aedeagus in lateral and ventral view and spermatheca. (101-103): Mesomegaskela rougemonti nov.sp.; (104-105): Chaetosogonocephus nobilis nov.sp.; (106-107): Chaetosogonocephus minor nov.sp.; (108): Chaetosogonocephus ruficollis nov.sp.; (109-111): Chaetosogonocephus danumensis nov.sp.; (112-113): Chaetosogonocephus luteicollis nov.sp.; (114-116): Malayloeblius borneensis nov.sp. Scale bars: 0.1 mm.