Quedionuchus gilaensis Brunke, 2020

Brunke, A. J., Salnitska, M., Hansen, A. K., Zmudzinska, A., Smetana, A., Buffam, J. & Solodovnikov, A., 2020, Are subcortical rove beetles truly Holarctic? An integrative taxonomic revision of north temperate Quedionuchus (Coleoptera: Staphylinidae: Staphylininae), Organisms Diversity & Evolution (New York, N. Y.) 20 (1), pp. 77-116 : 109-110

publication ID

https://doi.org/ 10.1007/s13127-019-00422-2

publication LSID

lsid:zoobank.org:pub:DC89AC05-7E2B-470C-9C71-897017CB82BC

persistent identifier

https://treatment.plazi.org/id/BC4F15E0-1A97-4FEA-82E0-411D3C339662

taxon LSID

lsid:zoobank.org:act:BC4F15E0-1A97-4FEA-82E0-411D3C339662

treatment provided by

Felipe

scientific name

Quedionuchus gilaensis Brunke
status

sp. nov.

Quedionuchus gilaensis Brunke View in CoL , sp. nov.

urn:lsid:zoobank.org:act:BC4F15E0-1A97-4FEA-82E0-411D3C339662

Figs. 4f View Fig , 6i–k View Fig , 7e View Fig , and 10a View Fig (map)

BIN BOLD:ADP2984

Type locality: Cloudcroft, New Mexico, USA.

Type material. Holotype (male, CNC): N. MEX., 8500’, Cloudcroft, VII.25.1973, J.M. Campbell [typed label]/ CNC655711 [identifier label]/ Quedionuchus gilaensis HOLOTYPE des. Brunke 2019 [printed red label]

Paratypes (16: CNC, FMNH, SEMC) : same data as holotype (5, CNC) ; USA: Arizona: Graham Mountains , 2800 m, 28.VIII.1971 (1, FMNH) ; Graham Co., Pinaleno Mts., Grant Creek , 32.70–109.87, 2651 m, sifting fir litter, D.S. Chandler, 9.VIII.1977 (1, FMNH) ; Cocochino County, San Francisco Mountains, Snow Bowl , 35.33–111.71, 2800 m, J.M. Campbell, 27.VII.1976 (1, CNC) ; New Mexico: no locality specified, F. Snow (1, SEMC) ; 2mi East of Cloudcroft, Lincoln National Forest , 32.95–105.71, 2667 m, A. Smetana, 15.VII.1969 (1, CNC) ; Cloudcroft , 32.96–105.74, D. Hardy, 27.VI.1940 (1, SEMC) ; same except L. Kuitert (1, SEMC) ; Magdalana Mountains , 34.04–107.19, F. Snow, VIII.1894 (1, SEMC) ; Otero Co., Saddle Campground, near Cloudcroft , 32.97–105.73, 2712 m, on fungi, A. Newton, 9–11.VII.1972 (1, FMNH) ; Sandia Crest, Sandia Mountains, Cibola National Forest , 35.21–106.45, 3048–3200 m, A. Smetana, 7.VII.1969 (1, CNC) ; Lincoln County, Sierra Blanca Ski Area , 33.39– 105.82, 3230 m, A. Smetana, 17.VII.1969 (2, CNC) .

Diagnosis. Within the Glaber Group, Q. gilaensis can be distinguished by the sparse microsculpture on the abdominal tergites (especially VII) ( Fig. 4d View Fig ), median lobe with relatively elongate apical portion ( Fig. 6j–k View Fig ), male sternite VII broadly but distinctly emarginate ( Fig. 4f View Fig ), male sternite VII with clearly impressed glabrous area ( Fig. 4f View Fig ). Females of Q. gilaensis and allopatric Q. plagiatus cannot be separated morphologically at present. Within its range, Q. gilaensis is the only species of Quedionuchus .

Description. Measurements ♂ (n = 5): HW/HL 1.38–1.41; PW/PL 1.10–1.13; EW/EL 0.96–1.03; ESut/PL 0.76–0.82; PW/HW 1.06–1.09; forebody length 3.6– 4.0 mm.

Measurements ♀ (n = 5): HW/HL 1.36–1.40; PW/PL 1.13–1.18; EW/EL 0.95–1.03; ESut/PL 0.79–0.83; PW/HW 1.06–1.12; forebody length 3.3–4.0 mm.

Similar to Q. glaber and differing only in the following: not colour polymorphic, head and abdomen dark brownish, pronotum always paler than head, reddish to dark reddish brown, apices of abdominal segments markedly paler, elytra always orange to yellowish-orange with large dark brown spot covering majority of disc; pronotum with two punctures in the dorsal row; abdominal segments with coarse, sparse microsculpture of transverse waves separat- ed by about twice their width; male sternite VII with dis- t i n c t, b r o ad em a rgi n at i o n, w i t h m o d e r a t el y s i z e d impunctate area that is distinctly impressed ( Fig. 4f View Fig ); median lobe of aedeagus in lateral view with overall stockier build, with apical area longer and narrower ( Fig. 6j–k View Fig ); female tergite X with short and broad central lobe ( Fig. 7e View Fig ).

Distribution. This species is endemic to the high elevation conifer forests of Arizona and New Mexico, south of those in the Western Cordillera system. This area is known as the Upper Gila Mountains Level II ecoregion ((CEC) Commission for Environmental Cooperation 2018) or the ‘ Arizona Mountains forest’ region ( Dinerstein et al. 2017).

Bionomics. Several specimens were collected from under the bark of fallen Picea , one specimen was collected from fir litter and another on fungi. Specimens were collected at high elevations ranging from 2590 to 3230 m.

Etymology. The species epithet is the Latinized adjectivederived from the Gila Mountains, where the species occurs, and the suffix -ensis, denoting the place of origin.

Comments. The nearest known population of closely related but allopatric Q. plagiatus is only about 130 km away, (Tres Ritos) in the southern Rocky Mountains of New Mexico.

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

FMNH

Field Museum of Natural History

SEMC

University of Kansas - Biodiversity Institute

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