Xenopygus cordovensis Bernhauer
Creators: name: Caron, Edilson
name: De Castro, Jessica C.
name: Da Silva, Maycon R.
name: Ribeiro-Costa, Cibele S.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Xenopygus
Xenopygus cordovensis

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.
description: 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