Osorius dubius SHARP , 1887: 679 Osorius laevigatus SHARP, 1887 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 75C2Q SHARP, 1887: 679 SHARP 679 1887 [267,637,1083,1104] Insecta Staphylinidae Osorius Animalia Coleoptera 22 385 Arthropoda species dubius    Osorius laevigatus SHARP, 1887, 679 new synonymy    Typematerial examined:    Panama: Volcande Chiriqui,  25 – 4000 ftelevation, 1 male, 1 female, leg. Champion( syntypes, BMNH);   Guatemala: Vera Paz, Sinanja, 1 male, leg. Champion( syntypeof  O. laevigatus, BMNH).  Additional material examined:   Belize:Olancho (86°42', 15 °06' N), under bark, La Muralla, 1450 melevation, 1 specimen, 25.6.1994, leg. J.S. Ashe ( KU);  Honduras: Yoro(87° 37', 15 °09' N), P.N. Pico Pijol, upper montane forest litter, 1300 melevation, 2 specimens, 11.5.2002, leg. R. Anderson ( KU); Cortez ( 87° 58' W, 14° 55' N), Yojo Lake, Deer Island, flight intercept trap, 670 melevation, 1 specimen, 26.6.1994, leg. J.S.Ashe ( KU); Santa Barbara, 11.5 kmS; 5.6 kmW. Peña Blanca ( 88 ° 02' W, 14° 57' N), beating stick pile, 1800 melevation, 1 specimen, 20.06.1994, leg. R.W. Brooks ( KU);  Costa Rica:Monteverde, Estacion Biologica, cloud forest litter, 4 specimens, 10.6.2001, leg. R. Anderson, 1 specimen, 12.5.1989, leg. J.S. Ashe ( KU, UIC); 1 specimen, SEM Costa Rica Exp., 1550 melevation, 7 specimens, 12.5., 14.5., 15.5., 21.5., 22.5.1989, 2 specimensunder bark, 12.5.1989, 1 specimenin small brown-spored gilled mushrooms at 1430 melevation, 28.5.1989, leg. J.S. Ashe ( KU, UIC); cloud forest litter ( 84°47' W, 10 ° 18' N), 1800 melevation, 1 specimen, 13.6.2001, leg. R. Anderson ( KU); Monteverde, lower montane forest litter, buried surface of decayed log, 1500 melevation, 10 specimens, 11.2.1989, leg. D.A. Grimaldi ( AMNH, UIC); Monteverde, Cerro Amigos, leaf litter at base of tree, 1785 melevation, 2 specimens, 22.5.1989, leg. J.S. Ashe ( KU); Campbell's woods, 1550 melevation, 2 specimens, 9.5.1989, 11.5.1989, leg. J.S. Ashe ( KU); San José, km 45 Pan Am Hwy, 6 kmNE El Empalme, forest litter, by Berlese, 1975 melevation, 1 specimen, 8.6.1997, leg. R. Anderson ( KU); Pan American Hwy km 113, 23 km N San Isidro ( 83 °42' W, 9 °29' N), 2000 melevation, 1 specimenby Berlese, 20.6.1997, leg. J.S. Ashe, ( KU); 2.4 kmENE Sn Gerardo de Rivas ( 83°33' W, 9°28' N), Cloudebridge Res. Ridge trail, under bark, 2100 melevation, 2 specimens, 9.6.2004, 10.6.2004, leg. J.S. Ashe ( KU); Guanacaste, Conservation area, Patilla field St., cloud forest litter, 2 specimens, 14.2.1996, leg. R. Anderson ( KU); Santa Elena Cloud Forest Res. cloud forest litter ( 84°47' N, 10°20' N), 1650 melevation, 3 specimens, 11.6.2001, leg. R. Anderson ( KU); Puntarenas, Las Alturas, Altamira Biol Stn. ( 82 ° 50' W, 8 ° 56' N), flight intercept trap, 1660 melevation, 2 specimens, 3.6.2004, under bark, 1660 melevation, 1 specimen, 1.6.2004, inside hepialid webs on trees, 1600 melevation, 1 specimen, 6.6.2004, leg. J.S. Ashe ( KU); at: San Vito Biol. Stat., Las Alturas, 1500 melevation, 1 specimen, 15.1.1992, leg. P. Hanson ( KU); Cerro Amigos, sifted leaf litter, 1780 melevation, 1 specimen, 9.5.1989, leg. J.S. Ashe ( KU); San Ramón ( 84°28' W, 10°04' W), 27 kmN & 8 kmW, flight intercept trap, 15.6.1997, leg. J.S. Ashe ( KU); Alajuela, Rio Penas Blancas ( 84°28' W, 10 °04' N), flight intercept trap, 875 melevation, 1 specimen, 19.5.1989, leg. J.S. Ashe ( KU); Cartago, Palo Alto Valley, 1500 melevation, 8 kmS Orosi ( 83 °51 ' W, 9 °43 ' N), 1 specimen, 25.5.1992, leg. M.E. Jameson ( KU); Orosi, 8 kmS, Embalse, El Llano, flight intercept trap, 1500 melevation, 1 specimen, 8.6.1992, leg. M.E. Jameson ( KU); Tuis 2 kmNE, Rancho Naturalista ( 83 °33' W, 9 °49' N), 2500 melevation, 1 specimen, 16.5.1995, leg. B. Ratcliffe ( KU); at: 9 kmN Varablanca, El Angel Falls, 1 specimen, 9.7.1964, leg. G.C. Eickwort ( KU); Par. Nat.Tapanti, forest litter, Berlese, 1750 melevation, 1 specimen, 4.6.1997, leg. R. Anderson ( KU); Santa Cruz de Turrialba, Rt 230, litter nr. stream, 1 specimen, 13.3.1991, leg. L. Herman ( AMNH); 15.5 kmN Jct. Rts. 126(9) and 120, 12 km E RD to Virgen de Soccorro, Rio Sarpiqui, leaf litter from shore of Rio and banks, 750 melevation, 1 specimen, 28.3.1991, leg. L. Herman ( AMNH); San Vito ( 82° 58' W, 9° 03' N), 35 kmNE, nr. Las Alturas, Rio Bella Vista, wet leaf litter, 1300 melevation, 2 specimens, 23.3.1991, leg. L. Herman ( AMNH);  Panama:La Palma ( 84°15' W, 10°02' N), 1600 melevation, 1 specimen, 9.1897, leg. Pittier ( BMNH); Bocas del Toro( 82°14' W, 9°20' N), 2 kmW, Fortunata; Hwy Continental divide, 1 specimen, 20.6.1995, 3 km W Fortunata Hwy, continental divide, 1050 melevation, 1 specimen, 12.7.1995, leg. A.R Gillogly ( KU); Chiriqui, Palo Alto Valley 4 kmE Boquete ( 82°23 ' W, 8°46 N), 1600 melevation, 2 specimens, 11.08.1995, leg. A.R Gillogly ( KU); 3.5 kmNE Santa Clara, Hartmann's Finca, Ojo ( 79°41 ' W, 9°03 N), 1450 melevation, 2 specimens, 23.5.1995, leg. A.R Gillogly ( KU); Hornito ( 82°12' W, 8°39' N), Finca la Suiza, flight intercept trap, 1220 elevation, 2 specimens, 6.6.2000, 30.5.2000, leg. A. Howden ( KU); 6 kmNE Boquete, under bark, 1500 melevation, 1 specimen, 14.6.1996, leg. J.S. Ashe ( KU); La Fortuna ( 82° 12' W, 8 °46' N), Continental Divide Trail, under bark, 1080 melevation, 2 specimens, 21.5.1995, leg. J.S. Ashe ( KU); 20 kmN. Gualaca, Finca la Suiza, fungousy log, 1350 melevation, 1 specimen, 22.5.1995, leg. J.S. Ashe ( KU).   Diagnosis: The species resembles  O. morio,  O. piceuspiceusand  O. continentaluscontinentalusin size and microsculpture of the pronotum. It can be distinguished from these species by the fine and sparse pronotal punctation and the deeper and narrower microsculpture with matter pronotal surface than in the three similar species.   Description:  Length: 9.0 mm. Colour: black; tarsi and antennae dark red.  Head:: 1.25 mmlong, 1.75 mmwide; with eyes scarcely prominent; broad lateral prominence of clypeus undulate; punctation moderately fine and sparse; distance between punctures on average as wide as diameter of punctures; with granular supraocular punctures; on clypeus punctures with extremely short setae and a pair of longer setae; on disk without setiferous punctures; only one supraocular seta on each side behind posterior edge of eyes; laterad temples striate; surface with very weak isodiametric microsculpture; surface nearly polished.  AntennaeAntennaewith 2 ndantennomere globular, not longer than wide; 3 rdantennomere conical, 1.5 times longer than 2 ndone; antennomeres 4 and 5 more or less quadrate, but distinctly smaller than quadrate subsequent antennomeres.  Pronotum: 1.50 mmlong, 1.75 mmwide; widest at anterior angles; more or less strongly narrowed to posterior angles; scarcely emarginate in front of posterior angles; anterior angles with shortly tooth-like prominence; lateral margin small at anterior angles, widened to posterior angles; punctation fine and sparse; distance between punctures on average twice as wide as diameter of punctures; with small impunctate midline and short furrow in posterior half; surface with distinct isodiametric microsculpture; surface nearly shiny.  Elytra: 2.0 mm long, 1.75 mmwide; with deep coriaceous ground sculpture; surface dull; punctation scarcely visible.  Abdominaltergites with weak netlike microsculpture; punctation extremely fine and sparse except a transverse row of larger setiferous punctures along posterior edge of abdominal tergites.  Aedeagusbroad, nearly circular with short apical part; apex obtuse and slightly curved.   Remarks:  SHARP (1887)already mentioned the strong similarity between  O. dubiusdubiusand  O. laevigatus. The study of the syntypesof the two OsoriusOsoriusspecies asserted the difference found by SHARP (1887). However, within a large collection of specimens, a high variety consistsconcerning the shape of the front edge of clypeus. As no differences were found in the aedeagus of  O. dubiusand  O. laevigatus,the two species have been synonymised. BMNH Champion Panama 613 Volcan 22 385 2 1 1 Chiriqui syntype Champion Guatemala Sinanja Vera Paz 22 385 1 1 syntype