Studies on Stiliderus Motschulsky and Stilicoderus Sharp: biogeographical notes and descriptions of new species (Coleoptera: Staphylinidae: Paederinae)
Creators: name: Rougemont, Guillaume De
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy

description: a e r o s u s group In contrast to the hieroglyphicus group, the appendages of the aedoeagi of members of this group are very similar, rather variable within species according to the position in which the ventral blade and parameroid lobes lie in relation to the median lobe, and do not always provide clear diagnostic characters; also the colour of elytra and legs is variable in some species, whereas the size, proportions and pubescence differ markedly between allopatric series which probably represent distinct species. For these reasons it has proven difficult to decide on the taxonomic status of these forms. Key to the known species of the aerosus group from New Guinea <i>Stilicoderus caprarius</i> Assing 2013 and <i>S. acutissimus</i> Assing 2013, which are recorded as belonging to this group, are not included in the key because they were not seen; in any case the figures the author gives of the aedoeaegi (which, with their symmetrical median- and parameroid lobes look like those of the hieroglyphicus group) clearly show that they do not belong to any of the species listed below. <b>5</b> Elytra shiny, devoid of granules, the puncturation coarse and irregular, the large punctures grouped here and there in twos or threes in longitudinal pit-like depressions, the surface of disc almost glabrous, with sparse pubescence only evident on sides. – Aedoeagus see Fig. 13............... <b> <i>aerosoides</i> n. sp.</b> <b>–</b> Elytra less shiny, with granules evident at least in anterior and posterior angles, the puncturation less coarse and more regular................................................................................... <b>6</b> <b>6</b> Elytra entirely covered in small granules; fore-body, and especially elytra clothed in very evident pale recumbent pubescence. – Aedoeagus see ROUGEMONT 1986a: figs. 3A, 3a....................................................................... <i>aerosus</i> Last <b>–</b> Granules obsolescent on disc of elytra, only clearly evident in anterior and posterior areas; pubescence much less evident on elytra........................................................................ <b>7</b> <b>7</b> Larger species, ca. 6.2 mm long (see proportions in description, below) [male unknown]......................................... <b>sp. X</b> – Smaller species, ca. 5 mm long (see proportions, below). – Aedoeagus see Fig. 12............................... <b> <i>baliemensis</i> n. sp.</b>
description: Published as part of <i>Rougemont, Guillaume De, 2015, Studies on Stiliderus Motschulsky and Stilicoderus Sharp: biogeographical notes and descriptions of new species (Coleoptera: Staphylinidae: Paederinae), pp. 113-130 in Stuttgarter Beiträge zur Naturkunde A, Neue Serie 8</i> on page 118, DOI: 10.5281/zenodo.3833627
description: {"references": ["ASSING, V. (2013 a): New species and records of Stilicoderus and Stiliderus, primarily from the southern East Palaearctic Region (Coleoptera: Staphylinidae: Paederinae). - Stuttgarter Beitrage zur Naturkunde A, Neue Serie 6: 57 - 82.", "ROUGEMONT, G. DE (1986 a): Revision of the genus Stiliderus Motschulsky, 1858 Part I: (= Stilicoderus Sharp, 1889) (Coleoptera, Staphylinidae, Paederinae). - Entomologische Abhandlungen Staatliches Museum fur Tierkunde Dresden 49: 139 - 187."]}