Oedichirus angusticeps, Rougemont, 2018

Rougemont, Guillaume de, 2018, New oriental Oedichirus (Staphylinidae, Paederinae, Pinophilini), Linzer biologische Beiträge 50 (1), pp. 461-536 : 467-468

Oedichirus angusticeps nov.sp.

(Figs 49)

Material studied: ♀ Holotype: MALAYSIA, Cameron Highlands, Gn. Jasar ; 4.4.1990, leg. A. RIEDEL / HOLOTYPE Oedichirus angusticeps Des. 2016 G. de Rougemont [ SMNS] ; 1♀ paratype: MALAYA, Pahang, Cameron Hlds. X.1990, G. de Rougemont / PARATYPE Oedichirus angusticeps Des. 2016 G. de Rougemont [ CRO] .

Additional material: 1♂: MALAYSIA: Pahang, G. Batu Berinchang 24-IV.1977 / berlese sphagnum moss LEWatrous / Oedichirus angusticeps nov.sp. det. 2016 G. de Rougemont [ AMNH]

Description: length: 5.8 mm; length of fore-body: 2.7; length of head: 0.72; breadth of head: 0.75; length of antenna: 1.7; length of pronotum: 1.12; breadth of pronotum: 0.95; length of elytron: 0.85; breadth of elytra: 0.95. Body black (the paratype and male specimen are teneral, pale brown), palpi, antennae and legs dark testaceous, legs dark testaceous, the profemora infuscate in distal half, mesofemora more narrowly infuscate at distal end, metafemora narrowly infuscate at base and at distal end. Dorsal surfaces glossy, devoid of microsculpture except on abdominal tergite VIII. Pubescence irregular, on abdomen composed of short pale decumbent hairs and long darker erect setae. Habitus: Fig. 49h.

Head scarcely transverse, appearing sub-quadrate; post-ocular border well marked, consisting of an entire carina ending anteriad in a small dentiform angle at some distance from posterior margin of eye and a finely punctate groove; puncturation of disc consisting of a pair of frontal punctures between antennal tubercles, eight punctures disposed symmetrically on vertex, an arcuate transverse row of about eight punctures before base, and a dozen smaller punctures along base. Pronotum broader than head, the sides slightly rounded between widely spaced and brodly rounded anterior angles and rounded posterior angles which are more widely separated than humeral angles; puncturation coarse and fairly dense, consisting of a pair of discal series of five large punctures, an irregular cluster of about a dozen punctures before that, lateral series of five punctures each and other punctures along anterior and lateral margins; lateral border entire, in the form of a bead. Micropterous, elytra small but longer than broad, humeral angles reduced but not obsolete; puncturation very coarse and dense. Puncturation of abdominal tergites disposed randomly, coarse, though finer than that of elytra, dense on tergites III-IV where interstices are mostly narrower than diameter of punctures, becoming progressively sparser on posterior tergites, tergite VIII with only eight punctures; basal keels of anterior margins of anterior tergitess short and inconspicuous.

Male: sternite VIII (Fig. 49s8) with a large broad apical emargination; in the only available male the aedoeagus, which is evidently malformed and incompletely sclerotized, shows in lateral view a long sclerotized structure that may be the dorsal sclerite of the

median lobe bent forward or an extruded inner piece, and what appear to be two very long slender freely articulated parameroid structures (Figs 49al,)

Female: sternite IX: Fig. 49vp.