Atheta (Dimetrota) districta Casey 1911

Atheta (Dimetrota) districta Casey, 1911

CANADA: ALBERTA: 8 km southeast of Sherwood Park, NE 7 Twp., 53°31’N, 113°19’W, 31.VIII.2003, J. Klimaszewski, aspen forest, (1m, LFC; 4f, LFC; 1, LFC). NOVA SCOTIA: Annapolis Co.: Big Dam Lake, Kejimkujik National Park, 27.VI- 7.VII.2004, H. Love, hemlock forest, pitfall trap, (1, DAL); Halifax Co.: 12.VII.2003, 16.VII.2003, 21.VII.2003, 29.VII.2003, C. Cormier, mixed forested, on decaying pig, (4, SMU); Shelburne Co.: Bon Portage Island, 27.VIII.2002, D.B. McCorquodale, coastal forest, (2, CBU); Yarmouth Co.: Wellington, 25.VI-3.VII.1995, J. and F. Cook, mixed coastal forest, flight-intercept trap, (1, JCC). ONTARIO: Carleton Co.: Mer Bleue, 15.VIII.1980, R. Baranowski, (1, MZLU); Nippising Co.: Algonquin Provincial Park near Brent, 21.VIII.1980, 22.VIII.1980, R. Baranowski, (6m, MZLU; 10f, MZLU; 1m, LFC); Sudbury Co.: 40 km northeast Gogama, Mattagami River, 27.VIII.1980, R. Baranowski, (1m, MZLU; 1f, LFC); Mattagami, 25.VIII.1980, R. Baranowski, (3f, MZLU; 1m LFC).

Atheta districta is newly recorded in Alberta, Nova Scotia, and Ontario. The specimens from Nova Scotia associated with carrion provide the first information on the bionomics of this species. It has been found in coniferous, mixed, coastal, and eastern hemlock (T. canadensis) forests.