Stilicoderus aerosoides, 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 : 122

Stilicoderus aerosoides n. sp.

Holotype (♂): Irian Jaya, Jayawijaya, Wamena, Pronggoli , 2000–2400 m, 17.–19.IX.1991, leg. A. RIEDEL ( SMNS) .

P a r a t y p e s: 1 ♂, 6 ♀♀, same data as holotype (5exx. SMNS, 2 exx. CRO) .

Description

Body length 5.5–6.0 mm. Proportions of holotype: length of head: 85; breadth of head: 88; diameter of eye: 29; length of antenna: 160; length of pronotum: 86; breadth of pronotum: 68; length of elytron: 100; breadth of elytra: 90; metatibia: 83; metatarsus: 50.

Head and pronotum dark brown to fuscous, elytra light brown, abdomen dark brown with tergites 7–9 pale brown, palpi and legs reddish brown, legs pale brown or fuscous. Head slightly transverse, with marked postero-lateral angles, the punctures slightly elongate and with conspicuous pale recumbent pubescence. Pronotum elongate, the puncturation granulose on entire surface, also clothed in pale recumbent pubescence. Elytra elongate, with numerous large foveate punctures in parts more or less aligned in parallel rows, the interstices shiny, entirely devoid of granules, and with sparser and less evident pale pubescence than on rest of fore-body.

Male: aedoeagus see Fig. 13 .

Differential diagnosis

I have named this species after S. aerosus Last in reference to the evident pubescence (although this is shorter than in aerosus ), and the granulose pronotum, but the new species lacks the sub-aeneous lustre of S. aerosus .

Figures

Figs. 11–21. Stilicoderus and Stiliderus spp., aedoeagi in lateral (a) and ventral (b) views. – 11. Stilicoderus lastianus n. sp. 12. Stilicoderus baliemensis n.sp. 13. Stilicoderus aerosoides n.sp. 14. Stilicoderus papuanus n.sp. 15. Stilicoderus continentalis n. sp. 16. Stilicoderus sarahae n.sp. 17. Stiliderus tengah n. sp. 18. Stiliderus germanus n.sp. 19. Stiliderus rugulosicollis n. sp. 20. Stiliderus brendellianus n.sp. 21. Stiliderus agostii n.sp. – Scales: 0.5 mm.