Osoriellus haitiellus
Creators: name: Irmler, Ulrich
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Osoriellus
Osoriellus haitiellus

description: Osoriellus haitiellus (DARLINGTON, 1937) new combination
(Figs 86 A-C, 101B)
Osorius haitiellus DARLINGTON, 1937: 6
Osorius haitiellus BLACKWELDER, 1943: 193
Type material examined: Haiti: Massif de la Hotte, 2000- 4000 feet, female (paratype in NMNH).
Further Material examined: Dominican Republic: Prov. La Vega, 7.2 mi SE Constanza Rd. to San José de Ocoa, 5000 ft elevation, litter nr. stream, male, July, 29, 1991, leg. L. Herman, # 2578-81 (AMNH).
Diagnosis: The species resembles O. rugipennis and O. franckei in size. Compared to O. rugipennis, the pronotal punctation is sparser. Compared to O. franckei, the pronotal microsculpture is more distinct and the surface is less shiny.
Description: Length: 4.7. Colouration: Black; legs and antennae light brown.
Head: 0.61 mm long, 0.94 mm wide; eyes not prominent; as long as temples; anterior angles of clypeus produced to short acute teeth; anterior edge between teeth even; setiferous punctation distinct and moderately dense; on average, interstices between punctures as wide as diameter of punctures; at bae of antennae, small area impunctate; on supraoculare area with granulate punctures; netlike microsculpture distinct; surface slightly shiny.
Antennae as long as head and half of pronotum combined; second antennomere oblong and slightly longer than conical third; following antennomeres increasing in width; antennomeres four to ten approximately quadrate and with long yellow setae.
Pronotum: 0.96 mm long, 1.04 mm wide; widest at anterior angles; anterior angles rectangular or slightly produced to extremely short acute teeth; sides in anterior half nearly parallel; in posterior half distinctly narrowed to obtuse posterior angles; lateral margin fine; in dorsal aspect, not visible close to anterior angles; setiferous punctation large; in irregular rows; row adjacent to impunctate midline with approximately 10 punctures; on disc, interstices between punctures as wide as or slightly wider than diameter of punctures; between setiferous punctation with dense micro-punctation; netlike microsculpture distinct; surface slightly shiny.
Elytra: 1.13 mm long, 1.08 mm wide; with weak coriaceous ground-sculpture; setiferous punctures in irregular rows.
Abdomen densely punctate with setiferous punctures; netlike microsculpture weaker than on fore-body and surface shinier.
Protibia: 0.51 mm long, 0.19 mm wide; with 7 spines at outer edge; apical spines on short digits; WLR: 1.66; in posterior aspect, comb of inner edge visible throughout its total length; posterior face densely covered by yellow setae.
Aedeagus with long and slender apical lobe; apical lobe smoothly curved to acute apex; inner edge of apical lobe with row of several sensillae.
description: Published as part of Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), pp. 231-354 in Beiträge Zur Entomologie = Contributions to Entomology 64 (2) on pages 270-271, DOI: 10.21248/contrib.entomol.64.2.231-354, http://zenodo.org/record/5461706