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) Author Klimaszewski, Jan Resources Canada, Canadian Forest Service, Laurentian Forestry 1055 du P. E. P. S., P. O. Box 10380 Stn. Sainte-Foy, Québec, Quebec, Canada G 1 V 4 C 7 jan. klimaszewski @ canada. ca Author Godin, Benoit 14 A Thompson Whitehorse, Yukon, Canada Y 1 A 0 C 4 Author Davies, Anthony Canadian National Collection of Insects, Arachnids and Nematodes Agriculture and Agri-Food Canada Ottawa, Ontario, Canada K 1 A 0 C 6 Author Bourdon, Caroline Resources Canada, Canadian Forest Service, Laurentian Forestry 1055 du P. E. P. S., P. O. Box 10380 Stn. Sainte-Foy, Québec, Quebec, Canada G 1 V 4 C 7 Author Horwood, Denise 14 A Thompson Whitehorse, Yukon, Canada Y 1 A 0 C 4 text Insecta Mundi 2018 2018-07-27 2018 641 1 33 journal article 10.5281/zenodo.5173990 1942-1354 5173990 9415B2C5-9166-4014-985F-7955E72805D2 Atheta ( Dimetrota ) terranovae Klimaszewski and Langor Distribution Origin Nearctic Distribution Canada : LB, MB, NB, NF, ON, QC, SK, YT. USA : not recorded New provincial Canada : Manitoba : Hecla, 2016-IX-17 , 51.7849°N , 96.6152°W , 218 m , mushroom, records sifting, B. Godin & D. Horwood ( BGC ) 3 males ; same locality data ( LFC ) 4 males , 1 female ; Bead Lake , 2016-IX-13 , 50.7868°N , 99.9928°W , 620 m , mushrooms, sifting, B. Godin & D. Horwood ( BGC ) 1 male ; same locality data ( LFC ) 1 male , 1 female . References Klimaszewski et al. 2011 , 2018 Collection and habitat data. Habitat (outside of the study area). It occurs in many coniferous, mixed and hardwood/deciduous forest types in Canada . Adults commonly found in decaying mushrooms (polypore and gilled) and sometimes in fresh mushrooms. In NB , in an oak forest, rich Appalachian hardwood forest, northern hardwood forest, various mixed forests, red spruce forest, mature red spruce forest with red maple or yellow birch, black spruce forest, and eastern white cedar forests and swamps ; specimens in fresh and decaying gilled mushrooms of various species, rotting lobster mushrooms, and a coral mushroom on spruce log. Also captured in unbaited and carrion-baited pitfall traps and flight intercept traps in various coniferous (spruce-feathermoss, spruce-lichen forests), mixed (spruce/aspen, riparian), and deciduous forests in NF and LB including some from decaying mushrooms ; also from red maple, pine/willow, balsam fir/white birch forests, elsewhere. Collecting period . VI–X (most common in VIII and IX ). Collecting method . Sifting litter and mushrooms, carrion-baited and unbaited pitfall traps , flight intercept traps , Lindgren funnel traps .