Neosorius mexicanus, Irmler, 2015

Irmler, Ulrich, 2015, New Neotropical genera and species of the tribe Osoriini (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 65 (1), pp. 173-196 : 183-184

publication ID

https://doi.org/ 10.21248/contrib.entomol.65.1.173-196

publication LSID

lsid:zoobank.org:pub:34012399-A256-429D-A5C0-58667E25EEEB

DOI

https://doi.org/10.5281/zenodo.4754139

persistent identifier

https://treatment.plazi.org/id/7CA101A0-AA19-44B9-A996-B8AB103FAAA3

taxon LSID

lsid:zoobank.org:act:7CA101A0-AA19-44B9-A996-B8AB103FAAA3

treatment provided by

Carolina

scientific name

Neosorius mexicanus
status

sp. nov.

Neosorius mexicanus View in CoL spec. nov.

( Figs 13A–C View Fig , 16F View Fig )

Type material: Holotype male: Mexico, without further data, leg. Skwara ( NMPC).

Paratypes: two females with same data as holotype ( NMPC, UIC) .

Etymology: The specific name derived from the name of the country, where the species was found.

Description: Length: 6.0 mm. Colouration: Black; legs and antennae brown.

Head: 1.03 mm long, 1.16 mm wide; eyes slightly prominent; temples approximately 1.5 times longer than eyes; fore-head narrowed to anterior angles of clypeus in long slight concave curve; anterior edge of clypeus deeply emarginate; thus, clypeal angles produced to broad triangles; clypeus with large elongate coriaceous punctures; on vertex similarly coarse elongate punctation separated by narrow impunctate midline; large area at base of antennae impunctate; continued to middle and separating clypeal punctation from vertex punctation; punctures of clypeus and vertex with setae; impunctate areas without microsculpture; overall surface matt, but impunctate areas shiny.

Antennae slightly longer than head; second antennomere elongate; slightly longer than wide; third antennomere conical and as long as second; following antennomeres increasing in width, but all approximately quadrate or slightly wider than long.

Pronotum: 1.08 mm long, 1.29 mm wide; widest in anterior third; smoothly narrowed to obtuse anterior angles; more distinctly narrowed to posterior angles; in front of posterior angles sinuate; posterior angles rectangular; lateral margin narrow; in dorsal aspect, lateral margin covered close to anterior angles; thicker close to posterior angles and continued to posterior edge; setiferous punctation deep and moderately dense; close to impunctate midline denser than laterad; on average, close to midline interstices between punctures half as wide as diameter of punctures; laterally, interstices between punctures as wide as diameter of punctures; between normal punctation with fine micro-punctures; without microsculpture; surface shiny.

Elytra: 1.28 mm long, 1.26 mm wide; widest in posterior third; shoulders rectangular, but rounded; setiferous punctation dense and deep; on average; interstices between punctures slightly shorter than diameter of punctures; coriaceous ground-sculpture weak; surface moderately shiny.

Abdomen with dense and fine setiferous punctation; punctures distinctly finer than on elytra; setae as long as two interstices between punctures; netlike microsculpture weak; surface moderately shiny.

Protibia: 0.74 mm long, 0.17 mm wide; with nine spines on outer edge; apical spines on moderately short digits; WLR: 0.65; on posterior face with row of five spines inserting on short digits; between spines sparsely covered by long yellow setae; in posterior aspect, inner emargination with comb totally visible.

Aedeagus with long apical lobe; broad at base; then suddenly narrowed to long small apex; apex slightly sinuate; at base of lateral apical lobe with numerous sensillae; endophallus smoothly spiralled; with only two torsions.

Diagnosis: The species can be easily identified by the deep emargination of the clypeus and the posteriad sinuate sides of the pronotum.

NMPC

National Museum Prague

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Neosorius

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