The neotropical genus Glyptoma ERICHSON, 1839 with descriptions of new species and a key to the species (Coleoptera: Staphylinidae: Osoriinae) Author Irmler, Ulrich text Beiträge Zur Entomologie = Contributions to Entomology 2015 2015-12-21 65 2 297 325 https://www.contributions-to-entomology.org/article/view/1885 journal article 10.21248/contrib.entomol.65.2.297-325 0005-805X 4753971 6E48386B-4B75-4ADF-8667-042F92582386 Glyptoma laeviceps SHARP, 1887 ( Figs 2A, B , 20A ) Glyptoma laeviceps SHARP, 1887: 723 Type material examined : Lectotype : male; Panama : Volcan de Chiriqui , 2000 - 4000 ft elev. ( 82°38'W , 8°46'N ), under bark saturated with sap, leg. Champion ( BMNH ). According to SHARP (1887) two type specimens exist. I saw one male that is here designated as lectotype . Further material : Costa Rica : Prov. Cartago , 2 males , Par. Nat. Tapanti , cloud forest litter (dry) 1650 m elev. ( 83°46'W , 9°43'N ), 18.02.1998 , leg. R. Anderson ( KNHM ) ; 2 males , 2 females , Tuis , 2 km NE Rancho Naturalista ( 83°33'W , 9°49'N ), 2501 ft elev., 15.– 16.06.1995 , leg. B. Ratcliffe , M. Jameson ( KNHM , UIC ) ; Prov. Puntarenas , 1 female , Las Alturas Stanford Biolog. Sta. , ca. 29 km NE San Vito , under bark, 1500 m elev., 25.05.1993 , leg. J. S. Ashe ( KNHM ) ; 1 male , 1 female , same region, 2 km NE Est. Biol. Alturas , upper montane/cloud forest trans. ( 82°50.01'W , 8°56.56'N ), litter, 1520 m elev. 10.07.1999 , leg. R. Anderson ( KNHM ) ; 4 males , 2 females , Las Cruces , 11 km SW Estacion Biologico Las Cruces ( 83°01.5'W , 8°46.43'N ), wet cloud forest litter, 1450 m elev., 9.07.1999 , leg. R. Anderson ( KNHM , UIC ) ; 1 male , 4 females , same region ( 82°57.58'W , 8°47.14'N ), fungus covered logs, 1330 m elev., 29.05.2004 , leg. J.S.Ashe , Z. Falin , I. Hinojosa ( KNHM ) ; 5 males , 2 females , Monteverde , 1570 m elev., collected by Berlese , 16.05.1989 , leg. J. S. Ashe , R. Brooks , R. Leschen ( KNHM , SDEI , UIC ) ; 1 male , same region, Estacion Biologica ( 84°47.49'W , 10°18.53'N ), montane forest litter, 1600 m elev., 14.06.2001 , leg. R. Anderson ; 1 male , same region ( 84°49.08'W , 19°19.4'N ), montane forest litter, 1540 m elev., 15.05.2001 , leg. R. Anderson ( KNHM ) ; 1 female , Corcovado National Park , Sirena Stn. lower Ollas Trail ( 83°35.22'W , 8°24.48'N ), under bark, 5 m elev., 25.06.2000 , leg. Z. H. Falin ( KNHM ) ; 3 males , 1 female , San Vito , 35 km NE, nr. Las Alturas , Rio Bella Vista , Rd to Gravel Pit , dry leaf litter near river, 4300 ft elev., 22.03.1991 , 23.03.1991 , leg. L. Herman ( AMNH ) ; 2 females , same region, 4 km S San Vito Biol Stat. Las Cruzes ( 82°57.36'W , 8°47.3'N ), leaf litter, 110 m elev., collected by Berlese , 19.06.1998 , leg. R. Anderson ( KNHM ) ; 8 males , 12 females , same region, 5 km SW S. Vito ( 82°59.13'W , 8°47.13'N ), leaf litter, collected by Berlese , 22.06.1998 , leg. R. Anderson ( KNHM , UIC ) ; 1 female , Las Cruces , 4000 ft elev., 01.08.1976 , C. & C. Goodnight ( AMNH ) ; 1 specimen , Tapanti ( 83°47'W , 9°42'N ), 9.09.1939 , leg. A. Bierig ( FMNH ) ; Prov. Alajuela , 1 female , Peñas Blancas , under bark, 930 m elev., 20.05.1989 , leg. J. S. Ashe , R. Brooks , R. Leschen ( KNHM ) ; Prov. Heredia , 2 females , 1 male , Puerto Viejo , Selva Biol. Stat. nr P. V. de Sarapiqui , 18.02.1985 , leg. L. Herman ( AMNH ) ; Panama : 1 female , Capira , Cerro Campana ( 79°57'W , 8°44'N ), forest litter, 950 m elev., collected by Berlese , 5.06.1995 , leg. R. Anderson ( KNHM ) ; 2 females , Darién , Cana Biol. Stat. , Serrania de Pirre ( 77°41.6'W , 7°45.18'N ), 975 m elev., 4.06.1996 , leg. A.R. Gillogly ( KNHM ) ; Prov. Chiriqui , 2 males , El Hato del Volcan , NW Volcán ( 82°40.26'W , 8°49.16'N ), litter near stream, 1410 m elev., 17.05.2001 & 24.12.2001 , leg. L. Herman ( AMNH ) ; 1 male , 1 female , same region, 27.7 km W Hartmann's Finca ( 82°44.48'W , 8°52.41'N ), under bark, 1580 m elev., 17.06.1996 , leg. J. S. Ashe & R. Brooks ( KNHM ) ; 1 male , 1 female , same region ( 82°44.36'W , 8°51.48'N ), forest litter, collected by Berlese , 1450 m elev., 14.06.1995 , leg. R. Anderson ( KNHM , UIC ) ; 1 female , La Fortuna , La Reserva , 3 km W Fortuna Hwy on continental divide trail ( 82°12'W , 8°46'N ), 1000 m elev., 8.08.1995 , leg. A.R. Gillogly ( KNHM ) ; 1 male , 1 female , same region, Hydro Trail ( 82°14'W , 8°42'N ), fungusy log, 1150 m elev., 9.06.1995 and 23.05.– 9.06.1995 collected by flight intercept trap , leg. J. S. Ashe & R. Brooks ( KNHM ) ; 1 female , Los Nubes , 6.7 km N Cerro Punta , P.N. Armistad ( 82°34'W , 8°22'N ), forest litter, 2150 m elev., collected by Berlese , 15.06.1995 , leg. R. Anderson ( KNHM ) . Diagnosis : The species can be easily identified by the shiny head among the similarly sized species. In contrast to G. cicatricosa MOTSCHULSKY 1857 and G. rossii spec. nov. , the head of G. laeviceps SHARP, 1887 is polished and without micro-striae. Description : Length: 3.5–3.9 mm . Colouration: black, legs dark yellow, antennae dark brown. Head: 0.45 mm long, 0.59 mm wide; eyes large and prominent; as long as temples; temples convergent to neck in convex curve; sides in front of eyes parallel; parallel part as long as eyes; then deeply sinuate to narrow clypeus; width of clypeus one third as wide as width of head; with swelling at base of antennae; punctation extremely sparse; only with few scattered small punctures; on average, interstices between punctures four to six times as wide as diameter of punctures; few punctures on vertex larger than others; without microsculpture; surface polished. Antennae nearly as long as head, pronotum and elytra combined, first antennomere thick and rectangular; second only half as long as first and distinctly smaller; third approximately quadrate; following antennomeres approximately as wide as third and longer than wide; penultimate antennomere slightly thicker and again approximately quadrate; last antennomere slightly longer than penultimate; all antennomeres with long setae; setae slightly longer than width of antennomeres; surface of antennomeres matt. Pronotum: 0.71 mm long, 0.74 mm wide; approximately globular; slightly pear-shaped; sinuate in front of posterior angles, but angles indistinct and rounded; posterior edge not wider than mesonotum; without lateral margin; punctation irregular; punctures extremely large and cori- aceous; three punctures in anterior half on both sides of midline more deeply impressed than laterally; deep furrow along midline more deeply impressed in anterior half than in posterior half; surface of midline and of punctures with deep isodiametric microsculpture, matt; interstices between punctures with weaker microsculpture and more shiny. Elytra: 0.98 mm long, 0.98 mm wide; sides smoothly curved; widest at middle; shoulders shortly denticulate; disc with two carinae on each side of suture; one in middle between suture and lateral margin; one from shoulders to posterior angles; on inner side of discal carina three indistinct irregular rows of large punctures; on each side of suture indistinct furrow without punctures; on outer side of discal carina and inner side of lateral carina with irregular row of smaller punctures; between these rows wider space without punctures; space between carinae inclusively surface of punctures with deep isodiametric microsculpture; in some parts microsculpture longitudinally reticulate; surface matt. Abdomen at segments III to V with deep transverse groove formed by deep large punctures; posterior half of segments impunctate; surface shiny; segments VI to VIII without transverse row of large and deep punctures and surface totally shiny; only with pair of short yellow setae on both sides of midline. Aedeagus forming nearly rectangular angle between basal and apical lobe; apical lobe long and approximately straight; acute short apex more strongly curved and pointing ventrally; inner edge of apical lobe indistinctly undulate; wider in middle than at base; with numerous sensillae in middle; thin paramere long; reaching apical third of apical lobe; in middle with undulate structure.