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 ) modesta (Melsheimer) Distribution

Origin	Nearctic
Distribution	Canada : AB , MB , NB , NS , ON , QC . USA : CT, DC, ME, MI, NY, PA, RI, VT, WV
New provincial Canada : Manitoba : Betula Lake, 2016-IX-20 , 50.0667°N , 95.5887°W , 306 m , records mushrooms, sifting, B. Godin & D. Horwood ( BGC ) 2 males ; Georges Creek , 2016- IX-15 , 50.6729°N , 99.6212°W , 696 m , mushrooms, sifting, B. Godin & D. Horwood ( BGC ) 1 male , 1 female ; Katherine Lake , 2016-IX-14 , 50.6603°N , 99.8947°W , 652 m , mushrooms, sifting, B. Godin & D. Horwood ( BGC ) 8 males , 11 females ; Hecla , 2016-IX-17 , 51.7849°N , 96.6152°W , 218 m , mushroom, sifting, B. Godin & D. Horwood ( BGC ) 4 females ; same locality data ( LFC ) 3 males ; Moose Lake , 2016- IX-19 , 49.2018°N , 95.3423°W , 353 m , mushroom, sifting, B. Godin & D. Horwood ( LFC ) 1 male , 1 female ; Max Lake , 2016-IX-10 , 49.0714°N , 100.1384°W , 686 m , mushrooms, sifting, B. Godin & D. Horwood ( LFC ) 2 males , 1 female ; Adam Lake , 2016-IX-11 , 49.0508°N , 100.0666°W , 689 m , mushrooms, sifting, B. Godin & D. Horwood ( LFC ) 3 males , 4 females ; Birds Hill [Prov. Park] - bur oak [trail], 2016- IX-16 , 50.0083°N , 96.9216°W , 264 m , mushrooms, sifting, B. Godin & D. Horwood ( LFC ) 8 males , 7 females .
References	Melsheimer 1844 , Klimaszewski et al. 2018

Collection and habitat data. Habitat (outside of the study area). In NB, found in various coniferous and hardwood forest types , usually in decaying fungi on forest floor; red oak forest in decaying gilled mushrooms, rich Appalachian hardwood forest in gilled mushrooms, and in entrance to mammal burrow in dung, various mixed forests in decaying gilled mushrooms and fleshy fungi, balsam fir forest in decaying Boletus mushrooms and gilled mushrooms, black spruce forest in Russula sp. mushrooms, mature red spruce and eastern white cedar forest in decaying mushrooms, and from unbaited pitfall traps in a red spruce forest (abundant); also from pitfall and flight intercept traps in yellow birch/balsam fir forest, mixed forest ( Acer, Betula, Quercus, Ulmus , Tsuga, Pinus sp. ), and a maple forest. Collecting period. V–IX. Collecting method . Sifting fungi and litter, pitfall traps, flight intercept traps.