61. Atheta (Dimetrota) prudhoensis (Lohse)

(Illustrations in Klimaszewski et al. 2018, 2021), Table 1

References. Lohse et al. 1990. Gusarov 2003 ( D. dempsterensis Lohse as synonym of A. prudhoensis). Klimaszewski et al. 2007, 2008, 2011, 2015c, 2018, 2020, 2021. Majka and Klimaszewski 2008. Webster et al. 2009.

Distribution. Nearctic, transcontinental in Canada, reported from A/S (Klimaszewski et al. 2021). Canada: AB, BC, LB, NB, NF, NS, ON, QC, SK, YT. USA: AK, ME (NSR), NH (NSR), NY, VT.

Collection and Habitat data. NH adults were collected from May to November. Found in Russula and other mushrooms, by sifting various leaf deciduous leaf litters, often by water, and taken by FIT at several sites. In AK specimens were captured at a field/forest edge, and in a wide variety of mesic forest leaf litters (coniferous and deciduous) as well as shrublands with Nephrophyllidium crista-galli (Menz. Ex Hook) Gilg, Elliottia pyrolifora (Bong.) S.W. Brim & P.F. Stevens, Luetkea pectinata (Pursh) Kuntze; willow, dwarf birch, shrub; and from tundra/ maritime tundra with Leymus and Heracleum . In Canada found in conifer dominated forests, as well as northern hardwood and mixed forests. Common in decaying mushrooms and Russula sp. (gilled mushroom), but also were found in deer dung, carrion, and compost (Klimaszewski et al. 2021).

Material. USA, Maine, York Co.: West Lebanon, 1–8.X.1990, 12–18.VI.1990, 25–30.IX.1990, 7–20.X.1991, 9–15.X.1990, 30.X–5.XI.1990, 30.XI–5.XII.1990, 6–20.X.1990, D.W. Barry, FIT, 8 males, 3 females. New Hampshire, Carroll Co.: 6 mi NW Bartlett, Nancy Brook Trail, 1500’, 9.IX.1987, A. Davies and Y. Bousquet, ex Russula mushrooms (CNC), 51 males, 1 female, 50 sex? Coos Co.: 2 mi NE Crawford Depot, 2100’, 13.IX.1987, J.M. Campbell and A. Davies, mass of mushrooms on large stump (CNC), 2 males, 4 females, 15 sex? 17 km S Gorham, Glen Ellis Falls, 1900’, 8.IX.1987, J.M. Campbell and A. Davies, sifting litter by stream (CNC), 1 female, 3 sex? Hwy 16, 5.6 km S Gorham, 9.IX.1987, A. Smetana (CNC), 1 female. Mt. Washington, 9–14.IX.1987, 3500’, L. LeSage and E. Rickey, mixed forest (CNC), 1 male, 2 females. Mt. Washington, Lake of the Clouds, 15.VII.1982, D.S. Chandler, pond margin, 1 female. 1 mi NE East Inlet Dam, 12–24.VI.1986, 22.VIII–12.IX.1986, 27.IX–17.X.1986, D.S. Chandler, FIT, 3 males, 4 females, 1 sex? Norton Pool, 3 mi NE East Inlet Dam, 13–26.IX.1986, D.S. Chandler, FIT, 2 females. Grafton Co.: Bedell Bridge S. P. @ Oliverian Brook, 3.VII.1992, sift silver maple by stream, 1 female; 3.VII.1992, berlese maple litter along stream in forest, 1 female; 25.V–7.VI.1992, 23.VI–3.VII.1992, 30.IX– 21.X.1992, D.S. Chandler, FITrap, 2 females, 1 sex? Hubbard Brook Exp. For., Bear Brook, 1500’, 15.X.1982, D.S. Chandler, sift rotten wood, 1 male. Strafford Co.: 4 mi W Durham, 14–17.V.1982, R.M. Reeves, window trap, 1 female. Spruce Hole, 3 mi SW Durham, 27.V–10.VI.1987, D.S. Chandler, FIT, 1 male. College Woods, Durham, 43.14045, -70.94637, 28.IX–12.X.2006, ZOOL 745/845 class, forest FIT, 2 males .