Atheta (Dimetrota) modesta (Melsheimer, 1844)
CANADA: ALBERTA: 8 km southeast of Sherwood Park, NE 7 Twp., 53°31’N, 113°19’W, 31.VIII.2003, J. Klimaszewski, aspen forest, (4m, LFC; 1f, LFC) . NOVA SCOTIA: Annapolis Co.: Big Dam Lake, Kejimkujik National Park, 1222.VIII.2004, 27.VI-7.VII.2004, H. Love, hemlock forest, pitfall trap, (54, DAL) ; Channel Lake, Kejimkujik National Park, 12-22.VIII.2004, 25.VI-5.VII.2004, 18.IX-2.X.2004, H. Love and S. Baker, maple/oak/birch forest, pitfall trap, (13, DAL) ; Cape Breton Co.: East Bay, 9.IX.2003, D.B. McCorquodale, (1, CBU) ; Cumberland Co.: Wallace, 1.VIII.1965, B. Wright, (1, NSMC) ; Wentworth, VIII.1965, B. Wright, sugar maple forest, pitfall trap, (1, NSMC) ; Digby Co.: Pebbleloggitch Lake, Kejimkujik National Park, 28.VI-7.VII.2004, 13-24.VIII.2004, H. Love, maple/oak/birch forest, pitfall trap, (14, DAL) ; Halifax Co.: Point Pleasant Park, 28.VII.2001, C.G. Majka, coniferous forest, on Russula brevipes Pk., (1, CGMC) ; Point Pleasant Park, 9.IX.2001, C.G. Majka, coniferous forest, on Amanita gemmata, (19, CGMC) ; Point Pleasant Park, 23.VI.2002, C.G. Majka, coniferous forest, on Fomitopsis pinicola (Fr.) Kar. (1, CGMC) ; Point Pleasant Park, 23.VIII.2002, C.G. Majka, coniferous forest, on gilled fungi (2, CGMC) ; Waverley, 10.VIII.1965, B. Wright, mixed forest, pitfall trap, (3, NSMC) ; Inverness Co.: Bornish Hills, 14-19.VII.1995, G.R. Macpherson, (1, CBU) ; Lunenburg Co.: Bridgewater, 1-16.VII.1965, B. Wright, red oak forest, pitfall trap, (5, NSMC) ; Queens Co.: Canning Field, Kejimkujik National Park, 14-23.VIII.2004, 26.VI-6.VI.2004, H. Love, hemlock forest, pitfall trap, (13, DAL) ; North Cranberry Lake, Kejimkujik National Park, 28.VI-8.VII.2004, 13-24.VIII.2004, H. Love, hemlock forest, pitfall trap, (4, DAL) ; Kejimkujik National Park, 28.VI.1994, 24.VIII.1994, 11.IX.2001, 29.IX.2001, 24.VIII-7.IX.1994, 28.VII-9.VIII.1994, B. Wright, deciduous forest, pitfall trap, (13, NSMC) .
Atheta modesta is newly recorded in Alberta and Nova Scotia. It has been found in deciduous, coniferous, and mixed forests [e.g., red spruce dominated forests (Klimaszewski et al. 2005b)]. In Nova Scotia specimens were collected from several species of living gilled fungi and polypores.