Stilicoderus riedelianus, 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 : 116

Stilicoderus riedelianus n. sp.

Holotype (♂): Papua New Guinea, West Sepik, Vanimo,

Denake Range, km 12, 28.–29.X. 1992, leg. A. RIEDEL ( SMNS). P a r a t y p e: 1 ♂, same data as holotype ( CRO) .

Description

Body length 4 mm. Proportions of holotype: length of head: 55; breadth of head: 63; diameter of eye: 26; length of antenna: 114; length of pronotum: 67; breadth of pronotum: 53; length of elytron: 70; breadth of elytra: 65; metatibia: 60; metatarsus: 36.

Pitchy black, palpi antennae and legs rufo-testaceous, meso- and metafemora infuscate, profemora less so. Head strongly transverse, the temples fairly evenly rounded from the posterior margin of eyes to the base.

Male: sternite VIII as in the preceding species. Aedoeagus see Fig. 7 .

Differential diagnosis

This small species is externally only distinguishable from S. riedeli n. sp. described above by the dark meso- and metafemora.

Figures

Figs. 1–10X. Stilicoderus spp., aedoeagi in lateral (a) and ventral (b) views. – 1. S. laticeps n. sp. 2. S. riedeli n.sp. 3. S. cephalicus n.sp. 4. S. obesus n.sp. 5. S. kolaensis n. sp. 6. S. sepikensis n.sp. 7. S. riedelianus n.sp. 8. S. lobatus n.sp. 9. S. maritimoides n. sp. 10. S. meraukeanus n. sp. 10X. S. batantaensis n. sp. – Scales: 0.5 mm.