Osoriellus coriaceus Irmler 2014, n. sp.
Creators
Description
Osoriellus coriaceus n. sp.
(Figs 51 A-C, 95F)
Type material: Holotype, male: Brazil: Bahia, Urucuca, Cerro Grande, primary Atlantic forest (39°3.43'W, 14°25.17'S), 120 m elevation, 28.1.1995, leg. D. Agosti (AMNH).
Paratypes: Brazil: 4 females with same data as holotype (AMNH, UIC).
Diagnosis: The species can be easily identified by the coriaceous punctation of the head that is unique in the similarly sized species of the Neotropical Osoriellus species.
Description: Length: 3.3 – 3.4 mm. Colouration: Black; legs and antennae reddish.
Head: 0.47 mm long, 0.68 mm wide; eyes slightly longer than temples and slightly prominent; sides of fore-head sinuate; anterior edge of clypeus slightly emarginate and each angle with short granule; setiferous punctation dense, coriaceous and striate; surface matt.
Antennae with second antennomere thick and oval; thicker than three following antennomeres; third antennomere conical and shorter than second; fourth to sixth antennomeres as wide as or slightly wider than third, but approximately quadrate; seventh to eleventh antennomeres much thicker than preceding antennomeres, but only slightly wider than long.
Pronotum: 0.65 mm long, 0.70 mm wide; widest at anterior angels; slightly convergent to smoothly rounded posterior angles; lateral margin narrow; in dorsal aspect, not visible in anterior fourth; setiferous punctation dense; punctures large; on average, interstices between punctures half as wide as diameter of punctures; narrow midline impunctate; without microsculpture; surface polished, but only slightly shiny, because of dense punctation.
Elytra: 0.83 mm long, 0.68 mm wide; with dense and deep ground-sculpture; dense punctation slightly visible in coriaceous ground-sculpture; surface matt.
Abdomen with dense setiferous punctation, but less dense than on elytra; narrow midline impunctate; surface polished and shiny.
Protibia: 0.43 mm long, 0.12 mm wide; at outer edge with 6 long spines; apical spines directly inserted on outer edge; WLR: 3.0; in posterior aspect, comb at inner emargination totally visible; posterior face densely covered by yellow setae.
Aedeagus with smoothly curved apical lobe; apex obtuse.
Etymology: The specific name refers to the dense coriaceous punctation of the head.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- AMNH , AMNH, UIC
- Event date
- 1995-01-28
- Family
- Staphylinidae
- Genus
- Osoriellus
- Kingdom
- Animalia
- Order
- Coleoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Irmler
- Species
- coriaceus
- Taxonomic status
- sp. nov.
- Taxon rank
- species
- Type status
- holotype , paratype
- Verbatim event date
- 1995-01-28
- Taxonomic concept label
- Osoriellus coriaceus Irmler, 2014