Stilicoderus lastianus, Rougemont, 2015

Rougemont, Guillaume De, 2015, Studies on Stiliderus Motschulsky and Stilicoderus Sharp: biogeographical notes and descriptions of new species (Coleoptera: Staphylinidae: Paederinae), Stuttgarter Beiträge zur Naturkunde A, Neue Serie 8, pp. 113-130 : 118-122

publication ID	https://doi.org/ 10.5281/zenodo.3833627
publication LSID	lsid:zoobank.org:pub:080B9FD6-D81F-4AF2-9B82-B5A0C65D8792
DOI	https://doi.org/10.5281/zenodo.3851403
persistent identifier	https://treatment.plazi.org/id/6D714422-FFC6-472A-FC31-FA835086FD63
treatment provided by	Plazi
scientific name	Stilicoderus lastianus
status	sp. nov.

Treatment

Stilicoderus lastianus View in CoL n. sp.

Holotype (♂): Irian Jaya, Jayawijaya, Borme , 1000– 1300 m, 13.–18.VIII.1992, leg. A RIEDEL ( SMNS) .

P a r a t y p e s: 3 ♀♀, same data as holotype (2 exx. SMNS, 1 ex. CRO) .

Description

Body length 5.2 mm. Proportions of holotype: length of head: 75; breadth of head: 81; diameter of eye: 29; length of antenna: 155; length of pronotum: 75; breadth of pronotum: 70; length of elytron: 92; breadth of elytra: 83; metatibia: 78; metatarsus: 44.

Black, the appendages dark reddish, the femora and especially meso- and metafemora more or less infuscate. Head distinctly transverse, with short, scarcely visible erect pubescence; puncturation of head very dense, the punctures slightly elongate especially posteriorly, on frons about the diameter of eye-facets; labrum tridentate, the outer teeth much broader and longer than the median tooth; pronotum apparently glabrous, sculpture of pronotum densely granulose, homogeneous, without trace of a median impunctate line; elytra with sparse, long, semi-recumbent pale pubescence, the large foveate punctures numerous, roughly aligned longitudinally in posterior two thirds smaller and more confused anteriorly, the interstices entirely and densely covered in dense granulose puncturation.

Male: 8 th sternite with a scarcely discernable small shallow emargination. Aedoeagus see Fig. 11 View Figs , the tips of parameroid lobes characteristically hook-shaped.

Differential diagnosis

In colour this new species most closely resembles S. solitarius Last from which it differs by its more transverse head and other proportions, its more densly granulose elytra, and the aedoeagus.