Atheta (Dimetrota) modesta (Melsheimer)

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 : 16

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.