New Neotropical genera and species of the tribe Osoriini (Coleoptera: Staphylinidae: Osoriinae) Author Irmler, Ulrich text Beiträge Zur Entomologie = Contributions to Entomology 2015 2015-06-30 65 1 173 196 https://www.contributions-to-entomology.org/article/view/1876 journal article 10.21248/contrib.entomol.65.1.173-196 0005-805X 4753843 34012399-A256-429D-A5C0-58667E25EEEB Neorhabdopsis brasiliensis spec. nov. ( Figs 5A–C , 16A ) Type material : Holotype male: Brazil : Rio de Janeiro , Planalto Itatiaia ( 44°33'W , 22°29'S ), 2300 m elevation, 20.04.1958 , leg. R. Arlé ( UIC ). Etymology : The specific name derived from the country, where the species was collected. Description : Length: 1.7 mm , Colouration: Red, legs and antennae yellow. Head: 0.26 mm long, 0.37 mm wide; clypeus semicircular; setiferous punctation moderately deep and dense; setae yellow; netlike microsculpture deep and dense; surface matt. Antennae slightly longer than head and half of pronotum combined; first antennomere rectangular thick; second oblong, slightly less wide than first; third antennomere conical, slightly shorter and narrower than second; fourth antennomere as wide as third; approximately quadrate; following antennomeres slightly increasing in width; penultimate antennomere 1.5 times as wide as long. Pronotum: 0.36 mm long, 0.40 mm wide; widest behind middle; slightly and evenly narrowed to anterior angles; to posterior angles narrowed in smooth convex curve; continuing to posterior margin without forming distinct angles; lateral margin extremely fine; not visible in dorsal aspect; setiferous punctation deep, coarse; on average, interstices between punctures half as wide as diameter of punctures; setae light yellow; moderately wide midline impunctate; netlike microsculpture deep and dense; surface matt. Elytra: 0.26 mm long, 0.39 mm wide; widest in posterior third; with distinct shoulders; setiferous punctation still coarser than on pronotum; nearly coriaceous; setae light yellow; netlike microsculpture deep and dense; surface matt. Abdomen with setiferous punctation still coarser than on elytra; on average, interstices between punctures one third as wide as diameter of punctures; without microsculpture; surface matt. Protibia with few spines on outer edge and few long setae on posterior face. Aedeagus with smoothly curved apical lobe; paramera slightly shorter than apical lobe and with long straight seta at apex; endophallus thick with elongate coil at lower and upper end and two narrow coils in between. Diagnosis : Among the genus the species can be easily identified by the distinct microsculpture and the evenly curved sides of the pronotum.