Dasygnypeta velata (Erichson, 1837)

Brunke, Adam J., Pentinsaari, Mikko & Klimaszewski, Jan, 2021, Integrative taxonomy of Nearctic and Palaearctic Aleocharinae: new species, synonymies, and records (Coleoptera, Staphylinidae), ZooKeys 1041, pp. 27-99 : 27

Dasygnypeta velata (Erichson, 1837) Fig. 12A-H

Homalota velata Erichson, 1837

Gnypeta minuta Klimaszewski & Webster, 2008, syn. nov.

Material

(DNA barcoded specimens). Germany: Thuringia, Ufergehoelze am Speicher Loessau , 50.5665, 11.894, 460 m, 1.I.2013, GBOL-Team ZFMK (1, ZFMK) ; Thuringia, NE, Freibad, Werraufer , 50.9768, 10.0963, 20.X.2014, GBOL-Team ZFMK (1, ZFMK) . United States: Alaska: Selawik NWR, Kugarak River , 66.561, -158.996, mud bank, shore washing, 23.VI.2010, D.S. Sikes (3, UAM) .

Additional non-barcoded material.

Canada: Manitoba: 5 miles SW of Shilo , 5.VI.1958, J.F. McAlpine (2, CNC) ; Northwest Territories: Inuvik , 24.VI.1972, A. Smetana (1, CNC) . United States: Alaska: Hess Creek, mi. 24 Wales Hwy, 1.VII.1978, J.M. Campbell and A. Smetana (1, CNC); Kenai Peninsula, Anchor River at Hwy 1, 450', 4.VI.1978, A. Smetana and E. Becker (1, CNC); mi. 1259 Alaska Hwy, 7.VII.1968, J.M. Campbell and A. Smetana (1, CNC) .

Distribution.

Origin: Holarctic. Canada: MB [new record], NB, NF, NT, SK. United States: AK.

Bionomics.

Nearctic specimens have been collected most frequently along the margins of running water but also along the margins of a forest pool ( Klimaszewski et al. 2018).

Comments.

Dasygnypeta velata is newly reported from North America and was previously known in the Nearctic region under the synonym Gnypeta minuta ( Klimaszewski et al. 2018). We here newly record this taxon from MB. Dasygnypeta velata is here considered a Holarctic species as it has a broad, transpalaearctic distribution (Europe to Siberia; Newton 2019), occurs along rivers and has been collected north of the treeline in Alaska.

This species has been collected together with D. nigrella in southern Manitoba (see above). The barcode sequences of the specimens from Alaska are all partial (386 to 407 bp), but the overlapping parts of the sequences are identical to the two German sequences.

Figures

Figure 12. Dasygnypeta velata (Erichson) A habitus B median lobe of aedeagus in lateral view C median lobe of aedeagus in dorsal view D spermatheca E male tergite VIII F male sternite VIII G female tergite VIII H female sternite VIII. Scale bars: 1 mm (A); 0.2 mm (B-H). Illustrations after Klimaszewski et al. (2018), used with permission.