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Published December 31, 2016 | Version v1
Taxonomic treatment Open

Xenopygus cordovensis Bernhauer

Description

Xenopygus cordovensis Bernhauer

(Figs 8, 11, 36, 48, 51, 54, 59)

Xenopygus cordovensis Bernhauer, 1910: 377 (type locality: ‘ Mexico: Cordoba’); Bernhauer & Schubert, 1914: 405 (catalog); Blackwelder, 1944: 142 (checklist, distribution); Irmler, 1979: 31 (characteristics); Irmler, 1982: 209 (characteristics, distribution); Herman, 2001b: 3611 (catalog, distribution).

Type material. Two syntypes from FMNH, male labeled as, ‘Cordoba/ Mex. Ver./ Dr. A. Fenyes’ [white label, printed], ‘ cordovensis / Brnh. Typus’ [white label, handwritten], ‘Chicago NHMus/ M. Bernhauer/ Collection’ [white label, printed], ‘FMNHINS/ 28183939/ FIELD MUSEUM’ [white label, printed], ‘Photographed/ Keaton 2014/ Emu Catalog’ [blue label, printed], ‘in Euparal’ [white label, handwritten], ‘cordovensi s / Bernh. Verh. Zool. Bot./ Ges. 1910. p. 377’ [white label with black margin, handwritten]; and female labeled as ‘Cordoba/ Mex. Ver./ Dr. A. Fenves’ [white label, printed], ‘ cordovensis / Brnh. Typus’ [white label, handwritten], ‘Chicago NHMus/ M. Bernhauer/ Collection’ [white label, printed], ‘FMNHINS/ 2840652/ FIELD MUSEUM/ Pinned’ [white label, printed], ‘ cordovensis / Bernh. Verh. Zool. Bot./ Ges. 1910. p. 377’ [white label with black margin, handwritten].

Diagnosis. Xenopygus cordovensis is is easily distinguished from X. sancticamillus, sp. nov., and X. petilicolis, sp. nov. by the color of the entirely brownish body, except for lighter abdominal segments VIII–X, eyes slightly longer than half of the head and tergite V with arched carina.

Redescription. BL: 11.0 mm, BW: 2.0 mm. Body brownish, dorsum of head and elytra darker, abdominal segments VIII–X lighter (Fig. 8). Pronotum with setal punctuations evenly distributed except for the longitudinal median region (Fig. 11).

Eyes slightly longer than half of the head. Antenna scape shorter than antennomeres II and III combined; antennomere IV evidently longer than wide; antennomeres IV–XI with microsetae; antennomere XI asymmetric. Mesoventrite process with apex slightly rounded; metatarsomeres II–IV non-bilobate. Tergite III–V with arched carina; sternite VII with apical margin with wide and smooth median emargination and without porous structure; sternite VIII of male with apical margin medially emarginate (Fig. 36). Median lobe with non-bulbous base (Fig. 48); apex slightly emarginate, smooth carina in ‘V’ shape in the apical third, three subapical tooth in hook shape, being the basal one the largest and the two apical smaller and with the same size (Fig. 51); parameres fused in a single plate and the apical two thirds with peg setae forming two internal curved columns (Fig. 54).

Geographical record. Mexico: Cordoba (Fig. 59).

Biological notes. Xenopygus cordovensis has only two type specimens, without any comment about the species biology.

Notes

Published as part of Caron, Edilson, De Castro, Jessica C., Da Silva, Maycon R. & Ribeiro-Costa, Cibele S., 2016, Phylogeny and revision of a colorful Neotropical genus of rove beetles: Xenopygus Bernhauer (Coleoptera: Staphylinidae), pp. 59-82 in Zootaxa 4138 (1) on pages 74-75, DOI: 10.11646/zootaxa.4138.1.2, http://zenodo.org/record/265266

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Linked records

Additional details

Biodiversity

Family
Staphylinidae
Genus
Xenopygus
Kingdom
Animalia
Order
Coleoptera
Phylum
Arthropoda
Scientific name authorship
Bernhauer
Species
cordovensis
Taxon rank
species

References

  • Bernhauer, M. (1910) Beitrag zur Kenntnis der Staphyliniden-Fauna von Zentralamerika. Verhandlungen der Zoologisch- Botanischen Gesellschaft in Wien Jg, 60, 350 - 393.
  • Bernhauer, M. & Schubert, K. (1914) Staphylinidae IV. In: S. Schenkling (Ed.) Coleopterorum Catalogus. 5 (57). Junk, Berlin, pp. 289 - 408.
  • Blackwelder, R. E. (1944) Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part 1. United States National Museum Bulletin, 185, xii + 1 - 188.
  • Irmler, U. (1979) Taxonomie, Verbreitung und Biologie der neotropischen Staphylinidengattung Xenopygus Bernh. (Coleoptera, Staphylinidae). Entomologische Blatter fur Biologie und Systematik der Kafer, 75, 30 - 36.
  • Irmler, U. (1982) A new species of the Neotropical genus Xenopygus Bernhauer (Coleoptera: Staphylinidae). The Coleopterists Bulletin, 36 (2), 206 - 210.
  • Herman, L. H. (2001 b) Catalog of the Staphylinidae (Insecta: Coleoptera) 1758 to the end of the second millennium, parts I-VII. Bulletin of the American Museum of Natural History, 167, 1 - 4218. http: // dx. doi. org / 10.1206 / 0003 - 0090 (2001) 264 % 3 C 0003: NCITSI % 3 E 2.0. CO; 2