Stilicoderus riedeli, 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 : 115

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.3851443
persistent identifier	https://treatment.plazi.org/id/6D714422-FFC1-4721-FEB8-FB8B5032F8AD
treatment provided by	Plazi
scientific name	Stilicoderus riedeli
status	sp. nov.

Treatment

Stilicoderus riedeli View in CoL n. sp.

Holotype (♂): Irian Jaya, Sorong Prov., Batanta Island , 10 m, sifted, 30.X.1996, leg. A. RIEDEL ( NHMW) .

P a r a t y p e s: 18 exx., same data as holotype; 5 exx., same locality and collector as holotype, but 150 m, 2.XI.1996; 2 exx., Irian Jaya, Sorong Prov., Salawatti Island, Solol , 200–300 m, 6.–7.XI.1996, sifted, leg. A. RIEDEL (20 exx. NHMW, 5 exx. CRO) .

Description

Body length ca. 4.1 mm. Proportions of holotype: length of head: 51; breadth of head: 65; diameter of eye: 24; length of antenna: 105; length of pronotum: 59; breadth of pronotum: 51; length of elytron: 67; breadth of elytra: 65; metatibia: 58; metatarsus: 35.

In colour, facies, sculpture etc. similar to S. hieroglyphicus and its allies, the legs entirely testaceous, but smaller than any species of this group described so far.

Male: abdominal sternites as in S. hieroglyphicus . Aedoeagus see Fig. 2 View Figs .

Differential diagnosis

S. riedeli is distinguished from all other members of the hieroglyphicus group by its small size and by the conformation of the ventral blade and spatulate parameroid lobes of the aedoeagus. It inhabits the same island as the similar species S. laticeps , described above, but was taken at lower altitudes.