Pelioptera irregularis, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 738-739

Pelioptera irregularis nov.sp. ( Figs 14 and 94 )

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 3.03 mm. Body shiny, yellowish-brown, head and free abdominal tergites four and five brown, antennae brown with the two basal antennomeres yellowish-brown, legs yellow. Second antennomere shorter than the first, third as long as the second, fourth as long as wide, fifth to tenth transverse. Eyes a little longer than the postocular region in dorsal view. Reticulation of the head very superficial, absent on rest of body. Puncturation of the head very superficial and evanescent, that of the pronotum very close and superficial, that of the abdomen fine and evanescent, sparse on the fifth free tergite. Granulation of the elytra very close and evident. Disc of pronotum with four punctures disposed in a square. Fifth free female tergite devoid of urotergum of secondary sexual characters. Spermatheca: Fig. 94.

C o m p a r a t i v e n o t e s: The new species is the first of the genus to present a spermatheca with a minuscule distal bulb followed by a ductus coiled like a skein.

E t y m o l o g y: The new species is named "irregular" in reference to the unique form of the spermatheca, which was hitherto unknown in this genus.

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 90-100: Aedeagus in lateral and ventral view, sixth free urotergum of male and spermatheca. (90-92): Pelioptera danumensis nov.sp.; (93): Pelioptera plenitudinis nov.sp.; (94): Pelioptera irregularis nov.sp.; (95-97: Dikraspedella borneensis nov.sp.; (98-100): Doryloxenus borneensis nov.sp. Scale bars: 0.1 mm.