Quedionuchus longipennis ( Mannerheim, 1846 )

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 : 100

Quedionuchus longipennis ( Mannerheim, 1846)

Figs. 3d–f , 4b–c , 6c , 7c and 9a (map)

BIN BOLD:ACC7393

Quedius longipennis Mannerheim 1846: 509

Quedius rufipennis Mäklin, 1853: 189 syn. nov.

Quedius (Quedionuchus) longipennis Mannerheim (misidentification of Q. plagiatus ): Smetana 1965 (Newfoundland, as separate species from ‘ Q. laevigatus ’, now Q. longipennis in the present sense)

Quedius (Quedionuchus) laevigatus : Smetana 1971 (North America, treated both Q. longipennis and Q. plagiatus in present sense, as single species under unavailable name laevigatus Gyllenhal ; lectotype designation for Q. longipennis )

Quedius (Quedionuchus) plagiatus Mannerheim 1843 (in part): Smetana 1990 ( Q. longipennis and Q. plagiatus in present sense, as single species under available name plagiatus Mannerheim )

Quedionuchus plagiatus (in part): Schülke and Smetana 2015 (reported Palaearctic distribution in detail, general world distribution)

Type locality: ‘ Unalaschka’ [=Unalaska, Amaknak Island, in the Aleutian islands] .

Type material. Lectotype (male, MZH): [male symbol on label]/Unalaschka/Cygnaeus/ Quedius longipennis Mannerh. / Mus. Zool. Helsinki N:o 7001 [yellow label]/Mus. Zool. H. fors Spec. typ. No. 2201 Quedius longipennis Mannh. / Quedionuchus longipennis Mannerheim det. A. Brunke 2018 [white label].

The male lectotype designated by Smetana (1971) morphologically corresponds perfectly to the concept given here for the Nearctic population of the Glaber group bearing a median lobe in lateral view with a relatively short apical part ( Fig. 6c ), here treated as a distinct species. The aedeagus of the lectotype bears a small, less protruding tooth, typical of and unique to Q. longipennis .

Quedius rufipennis Mäklin, 1853 syn. nov.

Type material not examined. Based on the description by Mäklin (1853), the elytra are reddish, excluding the other sympatric species of the genus, Q. plagiatus , which always bears a distinct spot or broad darkened discal area. Therefore, this name, previously a synonym of Q. plagiatus , is synonymized under Quedius longipennis Mannerheim.

Other material

Figures

Fig. 3 Dorsal habitus of: Quedionuchus armipes (Sharp) (a), Q. reitterianus (Bernhauer) (b), Q. yunnanensis (c), and Q. longipennis (d–f), (three colour morphs). Photo of Q. armipes by K.V. Makarov

Fig. 4 Quedionuchus armipes Sharp, expansion of hind femur (a); Q. longipennis (Mannerheim), microsculpture of pronotum (b); Q. longipennis (Mannerheim), microsculpture of tergite V (c); Q. plagiatus (Mannerheim), microsculpture of sternite V–VI (d);

Fig. 6 Quedionuchus glaber (O. Müller) (a, West Palaearctic, b, d, East Palaearctic), Q. longipennis (Mannerheim), typical shape (c), Q. plagiatus (Mannerheim) (e–g), Q. gilaensis Brunke (i–k) and Q. armipes Sharp (l–o). Aedeagus in ventral view (l), median lobe in

Fig. 7 Female tergite X of: Quedionuchus samuraicus (Bernhauer and Schubert) (a); Q. reitterianus (Bernhauer) (b); Q. longipennis (Mannerheim) (c); Q. plagiatus (Mannerheim) (d); Q. gilaensis Brunke (E); Q. armipes Sharp (F). Scale bars = 0.5 mm

Fig. 9 Distribution of: Quedionuchus longipennis (Mannerheim) (a); and Q. plagiatus (Mannerheim) (b)