Integrative taxonomy of Nearctic and Palaearctic Aleocharinae: new species, synonymies, and records (Coleoptera, Staphylinidae) Author Brunke, Adam J. https://orcid.org/0000-0003-1158-936X Agriculture and Agri-Food Canada, Canadian National Collection of Insects, Arachnids and Nematodes, 960 Carling Avenue, Ottawa, Ontario, K 1 A 0 C 6, Canada adam.j.brunke@gmail.com Author Pentinsaari, Mikko https://orcid.org/0000-0001-7241-3873 Centre for Biodiversity Genomics, 50 Stone Road East, University of Guelph, Guelph, Ontario, N 1 G 2 W 1, Canada Author Klimaszewski, Jan Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du PEPS, PO Box 10380, Stn. Sainte-Foy, Quebec, QC, G 1 V 4 C 7, Canada text ZooKeys 2021 2021-05-31 1041 27 99 http://dx.doi.org/10.3897/zookeys.1041.64460 journal article http://dx.doi.org/10.3897/zookeys.1041.64460 1313-2970-1041-27 EEE8490BB41D4A6CA963234C256C99BF 5AE03537388755CFAF1E06C3CC9EFA72 Philhygra angusticauda (Bernhauer, 1909) Fig. 31A-G Atheta (Metaxya) angusticauda Bernhauer, 1909 Atheta (Philhygra) pinegensis Muona, 1983, syn. nov. Material (DNA barcoded specimens). Canada : Alberta : Jasper National Park , Miette Hotsprings , 53.124 , -117.7755 , Malaise trap placed in valley with creek bed, sides rocky and mossy, 1439 m , 21.VII.2012 , BIObus 2012 (1, CBG) . Finland : Lkoc : Muonio , Sarvijaervi , 68.0909 , 24.103 , 11.VII.2012 , M. Pentinsaari (2, ZMUO) . Distribution. Origin. Holarctic. Canada : AB[new record], BC, NB. United States : AK, NH. Bionomics. As with other species of the genus, P. angusticauda is associated with riparian habitats. Comments. Philhygra angusticauda is a Holarctic species that was previously recognized in the Palaearctic (Finland, Norway, European Russia, Russian Far East) ( Schuelke and Smetana 2015 ; Newton 2019 ) under the synonym P. pinegensis (Muona). We newly report this species from Alberta and suggest that it broadly occurs across northern Canada. Specimens from the Nearctic and Palaearctic were found to have identical genitalia and their DNA barcodes form a cluster with only 0.3% divergence between Finnish and Canadian specimens. Figure 31. Philhygra angusticauda (Bernhauer) A habitus B median lobe of aedeagus in lateral view C female pygidium D male tergite VIII E male sternite VIII F female tergite VIII G female sternite VIII. Scale bars: 1 mm ( A ); 0.2 mm ( B-G ). Illustrations after Klimaszewski et al. (2018) , reproduced with permission.