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 Oligota pusillima (Gravenhorst, 1806) Fig. 16A-G Material (DNA barcoded specimens). Finland : Oba : Oulu , Hietasaari , 65.0225 , 25.4247 , 22.IV.2011 , M. Pentinsaari (1, ZMUO) ; Germany : Edenkoben-Rhodt , Villa Ludwigshoehe , 49.277, 8.09, 20.V.2012 , F. Koehler (2, ZSM); Edenkoben-Rhodt , Villa Ludwigshoehe , 49.277, 8.09, 23.VI.2012 , F. Koehler (2, ZSM); Zweibruecken-Mauschbach , Monbijou-Wald , 49.2038 , 7.39891 , 16.X.2011 , F. Koehler & W. Koehler (1, ZSM) . Canada : Alberta : Two Hills , Two Hills School EQP-CLL-553, 53.7104N , 111.7437W , 613 m , Malaise trap , 21.IX.-2.X.2015 , K. Warawa (2, CBG) . Additional non-barcoded material. Ontario : Ottawa, Ottawa River, Deschenes Lookout, Berlese flood debris, 1.V.1985 , A. Davies (1, CNC). Distribution. Origin : West Palaearctic (adventive in North America). Canada : AB [new record], NB, ON [new record]. United States : MA, NY. Bionomics. This species occurs in a variety of moist to dry, decaying organic matter including rotting hay, compost, hollow trees, and ant nests ( Kapp 2019 ). Canadian specimens were collected in compost ( Webster et al. 2016 ), and in malaise traps and flood debris in a suburban setting (present study). Comments. Oligota pusillima is a Palaearctic species that has been introduced to North America, South America, Australia, Africa, and southeast Asia ( Kapp 2019 , Newton 2019 ). It is here reported from Ontario and Alberta for the first time, the latter representing the westernmost record in North America. Specimens from Alberta were sequenced and their barcodes match those of Palaearctic specimens with no divergence. These specimens were also morphologically consistent with O. pusillima . Figure 16. Oligota pusillima (Gravenhorst) A habitus B median lobe of aedeagus in lateral view C spermatheca 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 Webster et al. (2016) .