Osorius piceus ERICHSON, 1840: 755

Irmler, Ulrich, 2010, The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 60 (2), pp. 363-426 : 396-397

publication ID

https://doi.org/ 10.21248/contrib.entomol.60.2.363-426

DOI

https://doi.org/10.5281/zenodo.5212803

persistent identifier

https://treatment.plazi.org/id/8D52F600-FFC6-FF85-16E4-B266FCFADCE6

treatment provided by

Felipe

scientific name

Osorius piceus ERICHSON, 1840: 755
status

 

Osorius piceus ERICHSON, 1840: 755 View in CoL (Figs 29 a-c)

Type material examined:

Brazil: 1 male, 1 female without further data (syntypes, ZMHU) .

Additional material examined:

Brazil: 1 specimen, without further data ( BMNH); Est. do Rio de Janeiro, Petropolis (43°10' W, 22°31' S) GoogleMaps , 1 male, 10.9.1961, leg. Schubart ( UIC); Rio de Janeiro (43°14' W, 22°49' S) GoogleMaps , 2 specimens without further date, leg. Squires ( BMNH); Corupa (49°13' W, 26°26' S) GoogleMaps , Hansa Humboldt , 2 specimens, Nov. 1940 and Nov. 1948, leg. A. Maller ( AMNH); Santos (46°18' W, 23°57' S) GoogleMaps , Ilha Santo Amaro , 1 specimen, 3.4.1916, leg. G. Bryant ( BMNH); Paraná, Antonina, 11.8 km NE, Res. Nat. do Rio Cachoeira, Sec. moist lowland forest, sift litter (48°42' W, 25°19' S) GoogleMaps , 1 specimen, 15.8.2003, leg. J. Bihn ( CC); Guaraquecaba (48°19' W, 25°17' S) GoogleMaps , Reserva Serra do Itaqui, moist lowland forest, sift litter, Winkler sample , 3 specimens, 21.5.2007 and 9.9.2007, leg. P. Hopp ( CC, UIC); São Paulo (46°36' W, 23°41' S) GoogleMaps , 1 specimen without further data ( AMNH) .

Diagnosis:

The species can be differentiated from the similar species in size by the lighter coloured brown elytra when comparing it to the black elytra in all other species.

Description:

Length: 8.7 mm. Colour: black; pronotum and elytra dark brown.

Head :: 1.5 mm long, 1.8 mm wide; with dense and deep punctation; distance between punctures on average as wide as diameter of punctures; isodiametric microsculpture moderately deep; surface shiny; front edge of clypeus emarginate with undulate inner side of lateral teeth; with one long and several extremely short setae on each side of middle; labrum wider than long; lateral striae behind eyes short and weak; with several supraocular granular punctures.

AntennaeAntennae with 2 nd antennomere oblong; 3 rd conical antennomere scarcely longer than 2 nd; antennomeres 4 to 6 slightly longer than wide; subsequent antennomeres quadrate.

Pronotum: 1.7 mm long, 2.0 mm wide; sides widest at front angles, forming a short prominent tooth; more or less continuously narrowed to posterior angles; posterior edge margined; with punctation and microsculpture as on head; surface shiny; a fine and sparse micro-punctation between normal, coarse punctures.

Elytra: 2.2 mm long, 2.0 mm wide; with weak coriaceous ground sculpture, and sparse and fine punctation; surface shiny, nearly polished.

AedeagusAedeagus small and elongate with a short acute apical part.

ZMHU

Zoologisches Museum der Humboldt Universitaet

AMNH

American Museum of Natural History

CC

CSIRO Canberra Rhizobium Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Osorius

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