Atheta

Klimaszewski, Jan, Godin, Benoit, Davies, Anthony, Bourdon, Caroline & Horwood, Denise, 2018, Forty new records of aleocharine beetles, and two new species in the genera Acrotona Thomson and Atheta Thomson, for the province of Manitoba, Canada (Coleoptera: Staphylinidae: Aleocharinae), Insecta Mundi 2018 (641), pp. 1-33 : 11

Atheta (subgenus undetermined) brunswickensis Klimaszewski

Distribution

Origin	Nearctic
Distribution	Canada: MB, NB, NS, ON, QC, YT. USA: not recorded.
New provincial record	Canada: Manitoba: Hecla, 2016-IX-17, 51.7849°N, 96.6152°W, 218 m, mushroom, sifting, B. Godin & D. Horwood (LFC) 1 female.
References	Klimaszewski et al. 2018

Collection and habitat data. Habitat (outside of the study area). In NB, from various forest types ; upland black spruce forest, red spruce and yellow birch forest, mature red spruce and eastern white cedar forest, balsam fir stand, red pine forest, jack pine forest, various mixed forests, red oak forest, and various hardwood forests. Adults in various kinds of mushrooms (mostly gilled mushroom species) in various stages of decay (fresh to well rotten) on forest floor; also found in forest litter (moldy conifer duff, leaf litter), some from pitfall traps in regenerating red spruce forest and yellow birch forest. Others from decaying (moldy) corncobs and cornhusks near mixed forest. Collecting period. V–IX. Collecting method. Sifting fungi and forest litter, pitfall traps.