Pelioptera plenitudinis nov.sp. (Figs 13 and 93) 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 2.12 mm. Body shiny, yellowish-brown, head and elytra brown, antennae brown with the two basal antennomeres yellowish-brown, legs yellow. Second antennomere shorter than the first, third shorter than the second, fourth to tenth transverse. Eyes longer than the postocular region in dorsal view. Fore-body devoid of reticulation, that of the abdomen irregular, polygonal, evident. Puncturation of the head very superficial and absent on frons. Granulation of pronotum and elytra very superficial and evanescent, that of the abdomen fine and evident. The pronotum bears four punctures disposed in a square, but the puncture of the right anterior angle is missing. No secondary sexual characters on the female fifth free abdominal tergite. Spermatheca: Fig. 93. C o m p a r a t i v e n o t e s: The spermatheca of the new species is similar in shape to that of P. bituberculata PACE, 2003 from West Malaysia but the apical umbilicus of the distal bulb of the spermatheca is enormous in the new species, and absent in of P. bituberculata. Moreover the length of the spermatheca of the new species is 0.2 mm, while in P. bituberculata it is 0.27 mm. E t y m o l o g y: The name of the new species means "of the fullness" in reference to the distal bulb of the spermatheca with its enormous apical umbilicus that fills the entire internal space.

Published as part of Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), pp. 727-794 in Linzer biologische Beiträge 46 (1) on page 738, DOI: 10.5281/zenodo.5306753