Atheta (Dimetrota) districta Casey, 1911

Klimaszewski, Jan, Chandler, Donald S., Davies, Anthony & Bourdon, Caroline, 2023, Aleocharine rove beetles of New Hampshire, USA: new taxa and new records (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 5364 (1), pp. 1-141 : 26

41. Atheta (Dimetrota) districta Casey

(Illustrations in Klimaszewski et al. 2018), Table 1

References. Casey 1911. Klimaszewski et al. 2005 a, 2018. Majka and Klimaszewski 2008.

Distribution. Nearctic. Canada: AB, BC, LB, MB, NB, NF, NS, ON, QC, SK. USA (NCR): ME (NSR), NH (NSR).

Collection and Habitat data. The NH specimens were found in leaf litter at a birch sap drip in deciduous forests and in an old burned field. Collected in May and August–October by window and flight intercept traps, and by sifting rotting lawn clippings. In Canada found in various forest types, usually in dung or decaying mushrooms: eastern white cedar swamp in moose dung, mature red spruce and eastern white cedar forest in deer dung, mixed forest in bear dung, in decaying (moldy) corncobs and cornhusks near mixed forest, regenerating mixed forest in decaying mushrooms, near lakeshore in decaying fungi, and in an old jack pine forest in rotten Boletus mushrooms. Also taken in a red maple swamp in leaf litter near a stream, and by pitfall traps in a red spruce forest A few specimens were collected at UV lights ( Klimaszewski et al. 2018).

Material. USA, Maine, Piscataquis Co.: Mt. Katahdin , 5200’, 3.IX.1939, 1 male . York Co.: West Lebanon, 7–13.V.1991, 1 male ; 10–16.VII.1990, 1 male ; 17–23.VII.1990, 1 male ; 21–27.VIII.1990, 25–30.IX.1990, 1 female , D.W. Barry , FIT, 1 male, 1 female . New Hampshire, Carroll Co.: 6 mi NW Bartlett Nancy Brook Trail, 1500’, 9.IX.1987, Y. Bousquet ( CNC), 1 sex? Crawford Notch , 3–5.IX.1970, S. Peck, deciduous forest, human dung trap ( CNC), 1 male, 1 female . Coos Co.: 8 mi E Gorham, 800’, 14.VIII.1976, J.M. and B.A. Campbell ( CNC), 3 sex? 8 mi E Gorham, 800’, 15.VIII.1976, J.M. and B.A. Campbell ( CNC) 8 sex? Strafford Co.: 1 mi SW Durham , 21.V.1982, D.S. Chandler, sift leaf litter birch sap drip, 1 male, 1 female . Durham , 26.V.1987, W.J. Morse, rotting lawn clippings, 1 female . 4 mi W Durham , 19–21.V.1982, R.M. Reeves, window trap, 1 male . East Foss Farm , 32m, 1 km S Durham, 21.IX–4.X.2007, ZOOL 745/845 class, FIT, old burned field, 1 male, 1 female .