Glyptoma hirticorne SHARP, 1887,

Irmler, Ulrich, 2015, The neotropical genus Glyptoma ERICHSON, 1839 with descriptions of new species and a key to the species (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 65 (2), pp. 297-325: 310

publication ID

http://doi.org/ 10.21248/contrib.entomol.65.2.297-325

publication LSID

lsid:zoobank.org:pub:6E48386B-4B75-4ADF-8667-042F92582386

persistent identifier

http://treatment.plazi.org/id/050D87D8-FFAE-5F1F-3F90-E4B6FB292F5F

treatment provided by

Carolina

scientific name

Glyptoma hirticorne SHARP, 1887
status

 

Glyptoma hirticorne SHARP, 1887 

( Figs 12A, BView Figs 7–12, 21FView Figs 21)

Glyptoma hirticorne SHARP, 1887: 724 

Type material examined: 2 male, 3 female syntypes: Guatemala: Capetillo, leg. Champion ( BMNH)  .

Diagnosis: G. hirticorne SHARP, 1887  is the smallest species of the group with pseudo-punctures on the pronotum. Concerning the shiny head and pronotum it resembles G. guadelupense (WENDELER, 1930)  . It can be easily identified by the distinctly convergent discal carinae of the elytra and by the dense setation of the antennomeres.

Description: Length: 2.3 mm. Colouration: Dark brown to black; elytra slightly lighter, but still dark brown; legs lighter brown; tarsi yellowish.

Head: 0.30 mm long, 0.39 mm wide; eyes slightly prominent; as long as temples; temples narrowed to neck in smooth convex curve; sides in front of eyes parallel; parallel part slightly longer than eyes; angles at base of antennae widely rounded; narrowed to anterior edge of clypeus in sinuate curve; anterior edge of clypeus approximately half as wide as distance between base of antennae; setiferous punctation sparse and moderately deep; interstices between punctures irregular, but at least as wide as diameter of punctures; without microsculpture; surface shiny.

Antennae as long as head and pronotum combined; second and third antennomeres slightly narrower than following antennomeres; wider than long; fourth to tenth antennomere equally wide; tenth antennomere twice as wide as long; third to tenth antennomere covered by long yellow setae; setae slightly shorter than width of antennomere.

Pronotum: 0.32 mm long, 0.34 mm wide; widest near middle; narrowed to widely rounded anterior angles in smooth convex curve; narrowed to posterior obtusely angled angles in concave curve; pseudo-punctures large; symmetric on both side of midline; three closely adjacent pairs; smaller one in anterior half; larger and smaller one in posterior half; between anterior pair and larger posterior pair with moderately wide impunctate area; on remaining area, interstices between pseudo-punctures restricted to small ridges; at posterior angles combined to irregular impression; setiferous punctation on ridges between pseudo-punctures; surface of pseudo-punctures with netlike microsculpture; ridges with remnants of microsculpture; surface moderately shiny;

Elytra: 0.54 mm long, 0.48 mm wide; widest in middle, but approximately parallel; shoulders widely rounded to emarginate anterior edge; with discal carina distinct; lateral carina absent; discal carinae convergent anteriad; suture line narrow; continued to posterior margin; betweensuturelineanddiscalcarinawithirregularpattern of pseudo-punctures; in posterior part partly coriaceous; laterad of discal carinae with rows of pseudo-punctures; interstices between pseudo-punctures irregular, but approximately half as wide as diameter of pseudo-punctures; setiferous punctation restricted to ridges; remnants of microsculpture longitudinally striate; laterad to discal carinae partly more distinct than between suture line and discal carinae; surface moderately shiny.

Abdomen densely covered by large pseudo-punctures; ridges between pseudo-puncture still narrower than on pronotum and elytra; on posterior segments sparser than on anterior segments; setiferous punctation on ridges between pseudo-punctures.

Aedeagus with nearly rectangular angle between basal and apical lobe, apical lobe abruptly narrowed to acute apex in apical third; close to apex sinuate; group of four sensillae at lateral base of apical lobe and two pairs of sensillae closer to apex; endophallus with obtuse angle at half of apical lobe; paramere short; ending approximately at end of basal third of apical lobe.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Glyptoma

Loc

Glyptoma hirticorne SHARP, 1887

Irmler, Ulrich 2015
2015
Loc

Glyptoma hirticorne

SHARP, D. 1887: 724
1887