New species and distributional records of Aleocharinae (Coleoptera, Staphylinidae) from Ontario, Canada, with a checklist of recorded species Brunke, Adam J. Klimaszewski, Jan Dorval, Julie-Anne Bourdon, Caroline Paiero, Steven M. Marshall, Stephen A. ZooKeys 2012 186 119 206 http://species-id.net/wiki/Atheta_circulicollis Lohse, 1990 Lohse 1990 Insecta Staphylinidae Atheta CoL Animalia Atheta ((Atheta)) circulicollis Coleoptera 25 144 Arthropoda species circulicollis (Atheta)  Material examined. CANADA: ON:Hald.-Norfolk Reg., Cronmiller Prop., ~6km W St. Williams, 42°40'18"N, 80°29'24"W, forest, site 2, malaise pans, 17 to 31.v.2011, Brunke & Paiero, 1 (DEBU), Turkey Point Prov. Park, 42°41'48"N, 80°19'48"W, forest, malaise pans, 31.v to 15.vi.2011, Brunke & Paiero, 1 (DEBU); Northumberland Co., Peter'sWoods PNR, 44°7'27"N, 78°2'21"W, forest, malaise, 19.v to 1.vi.2011, Brunke & Paiero, 1 (DEBU), same data except: back woods, forest, malaise pans, 1 to 16.vi.2011, 1 (DEBU).  Distribution. Canada: ON, QC, NB, NL ( Lohse et al. 1990; Klimaszewski et al. 2011; Webster et al. 2012). Native.  Comments. This species was previously known only from relatively northern, forested localities in Canada, including near the tree line in Quebec ( Lohse et al. 1990). The collections made from southern Ontario forests are surprising and suggest a much broader distribution in northeastern North America.