The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae)
Irmler, Ulrich
Beiträge Zur Entomologie = Contributions to Entomology
2010
2010-12-20
60
2
363
426
75BTW
BERNHAUER
BERNHAUER
[267,614,1518,1542]
Insecta
Staphylinidae
Osorius
Animalia
Coleoptera
32
395
Arthropoda
species
peruvianus
Typematerial examined: Peru: 1 male, without further information ( holotype, FMNH). Additional material examined: Peru: Puerto Maldonado, 15 kmNE ( 69°03' W, 12°33' S), flight intercept trap, 200 melevation, 2 specimens, 10.7.1989, leg. R. Leschen( KU); 15 kmN, Tambopata Prov, ex molassas, 200 melevation, 2 specimens, 11.7.1989, leg. J.S. Ashe( KU); Madre de Dios, Pantiacollalodge ( 71°13' W, 12°39' S), Alto M.d. Dios River, 400 melevation, 2 specimens, 26.10.2000, leg. R.W. Brooks( KU, UIC); Tingo Maria, Huan, 750 melevation, 3 specimens, 19.5.1947and 16.5.1947, leg. J. Pallister( AMNH); Brazil: Espirito Santo( 40°12' W, 20°05' S), Conceição da Barra, 1 specimen, 15.10.1972, leg. M. Alvarenga( AMNH); Paraná, Rolandia( 51°22' W, 23°18' S), 3 specimen, 19.10.1947and 15.9.1948, leg. A. Maller( AMNH).
Diagnosis: The species is very similar to O. integerintegerwith regard to punctation and microsculpture of the fore body. O. peruvianusperuvianusis slightly larger on average than O. integer. It is also similar in size to O. sahlbergi, but pronotal microsculpture is weaker and surface, thus, shinier.
Description: Length: 10.8 – 11.5 mm. Colour: black. Head:: 1.5 mmlong, 2.4 mmwide; with deep and dense punctation; distance between punctures on average as wide as or shorter than diameter; isodiametric microsculpture dense and deep; surface shiny; lateral angles of clypeus scarcely prominent and widely obtuse; front emargination short and smooth; labrum two times wider than long; scarcely projecting the clypeal emargination; eyes large, scarcely shorter than temples; with numerous striae dorsad to eyes and behind eyes; supraocular striae parallel, postocular ones diagonally pointing ventrad; with numerous granular punctures. AntennaeAntennaerelatively thick; with 2 ndantennomere short, wider than long; 3 rdantennomere oval and more or less twice as long as 2 nd; antennomeres 4 and 5 slightly longer than wide; subsequent antennomeres quadrate. Pronotum: 2.1 mmlong, 2.6 mmwide; widest at front edge; anterior angles tooth-like prominent; sides continuously narrowed to posterior angels; indistinct emargination shortly in front of posterior angles; lateral margin narrow at anterior angles; distinctly wider at posterior angles; posterior edge margined; punctation and microsculpture distinct and as deep as on head; surface shiny; in posterior half of smooth midline, a short longitudinal depression. Elytra: 2.7 mmlong, 2.7 mmwide; with coarse and dense punctation and indistinct coriaceous ground sculpture; surface shiny. Aedeaguspear-shaped with moderately long apical part with obtuse apex and wide distal fold.
[190,836,1613,1638]
FMNH
Peru
Peru
32
395
1
1
holotype
1989-10-07
KU
R. Leschen
Peru
200
-12.55
Puerto Maldonado
1293
-69.05
33
396
2
1989-11-07
KU
J. S. Ashe
Peru
200
Tambopata Prov
33
396
2
2000-10-26
KU, UIC
Alto M. & R. W. Brooks
Peru
400
-12.65
Dios River
1293
-71.21667
Pantiacolla
33
396
2
Madre de Dios
19.5. 1947 and 16.5. 1947
AMNH
J. Pallister
Peru
750
Huan
Tingo Maria
33
396
3
1972-10-15
AMNH
da Barra & M. Alvarenga
Brazil
-20.083334
Espirito Santo
1269
-40.2
33
396
1
Espirito Santo
19.10. 1947 and 15.9. 1948
AMNH
A. Maller
Brazil
-23.3
Rolandia
1256
-51.366665
33
396
3
Parana