Porus laminarum, Pace, 2014

Pace, R., 2014, Aleocharinae from Sabah (Borneo) collected by Guillaume de Rougemont (Coleoptera, Staphylinidae), Linzer biologische Beiträge 46 (1), pp. 727-794 : 763-764

Porus laminarum nov.sp. ( Figs 55 and 219-222 )

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). Paratypes: 2, same provenance as the holotype (CROU, MSNV).

D e s c r i p t i o n: Length 11-11.3 mm. Body shiny, yellowish-red, head and fourth and fifth free abdominal tergites reddish, posterior third of the elytra brown, antennae and legs yellowish-red. Second antennomere shorter than the first, third longer than the second, fourth to eighth longer than wide, ninth and tenth as long as wide. Eyes shorter than the postocular region in dorsal view. Reticulation of the head very superficial, absent on the rest of the body. Head devoid of puncturation or granulation; pronotum with only four large discal punctures disposed in a square; puncturation of the elytra fine, interspersed with a few larger punctures and superficial granulation on the posterior part of elytra. Male first free abdominal tergite with two long lateral appendices ( Fig. 222 ), the second with a basal triangular convexity furrowed on the median line, the third with a median basal swelling, fifth with a salient posterior median carina. Aedeagus: Figs 219- 220 ; male sixth free tergite: Fig. 221 ; abdomen of the male: Fig. 222.

C o m p a r a t i v e n o t e s:Thegenus Porus WESTWOOD, 1839 known from India

and Sudan, is new to Borneo. The new species differs from P. ochraceus WESTWOOD, 1839 from India in that the pronotum is as wide as long, whereas in P. ochraceus it is transverse, and in the antennomeres four to six being longer than wide, whereas in P. ochraceus they are strongly transverse.

E t y m o l o g y: The name of the new species, "of the lamina", refers to the two blades of the internal sclerotised pieces of the aedeagus.

Figures

Figs 46-57: Habitus. (46): Drusilla borneoclara nov.sp., scale bar 5.8 mm; (47): Drusilla rougemontiana nov.sp., scale bar 5.5 mm; (48): Drusilla danumensis nov.sp., scale bar 3.4 mm; (49): Drusilla borneoapicalis nov.sp., scale bar 4.6 mm; (50): Drusilla borneostricta nov.sp., scale bar 7.5 mm; (51): Drusilla sabahorum nov.sp., scale bar 5.3 mm; (52): Drusilla trina nov.sp., scale bar 8 mm; (53): Drusilla borneoruficollis nov.sp., scale bar 6.8 mm; (54): Zyras (Glossacantha) plenus nov.sp., scale bar 9 mm; (55): Porus laminarum nov.sp., scale bar 11.3 mm; (56): Porus borneensis nov.sp., scale bar 5.3 mm; (57): Wroughtonilla sabahensis nov.sp., scale bar 4.6 mm.

Figs 219-229: Aedeagus in lateral and ventral view, sixth free urotergum of male, abdomen, spermatheca. (219-222): Porus laminarum nov.sp.; (223-226): Porus borneensis nov.sp.; (227): Wroughtonilla sabahensis nov.sp.; (228): Mimacrotona borneensis nov.sp.; (229): Apimela perarmata nov.sp. Scale bars: 0.1 mm.