143. Gymnusa atra Casey *

(Illustrations in Klimaszewski et al. 1979, 2018, 2021), Table 1

References. Casey 1911. Klimaszewski 1979, 1982. Klimaszewski and Génier 1985. Majka and Klimaszewski 2010. Klimaszewski et al. 2011, 2018, 2020, 2021.

Distribution. Holarctic, transcontinental in Canada, recorded from A/S (Klimaszewski et al. 2021). Canada: AB, BC, LB, MB, NB, NF, NS, NT, ON, QC, YT. USA: AK, IL, IA, MA, ME, MI, MN, NH, NY. France: St. Pierre and Miquelon. Russia (eastern). China (northeastern).

Collection and Habitat data. In NH captured in litter and taken by a FIT. Collected in April–May and September. Elsewhere found in tamarack ( Larix laricina (Du Roi)) and black spruce ( Picea mariana (Mill.) B.S.P.)) bogs, marshy pond and lake margins, cattail/ Carex marshes, and marshy margins of slow flowing rivers. Adults usually found in Carex hummocks, moist to wet Sphagnum with Carex, and in saturated marsh vegetation (Klimaszewski et al. 2021).

Material. USA, Maine, Hancock Co.: Great Heath, Bar Harbor, 5.X.1944, A.E. Brower, on willow, 2 sex? Kennebec Co.: Winslow, 21.VII.2005, D.R. Bourque, 1 sex? Oxford Co.: Lincoln Tract Bog, 5 mi S Wilsons Mills, 15.VIII.1954, D.S. Chandler, treading, 3 sex? Massachusetts, Middlesex Co.: Groton, 13.I.2008, T. Murray, 1 sex? Spencer Circle, 1 km E West Groton, 4.VI.2020, T. Murray, UV lt., 1 sex? New Hampshire, Coos Co.: Mt. Washington, Lakes of the Clouds, 5000’, 10.IX.1987, A. Smetana (CNC), 1 sex? Rockingham Co.: Hampton, 15.IV.1925, S.A. Shaw, sifting, 1 sex ?; 15.IV.1917, S.A. Shaw, 1 sex? Strafford Co.: 1 mi SW Durham, 12–26.V.1987, D.S. Chandler, FIT, 1 female . Canada, Ontario, Mer Bleue, 6 mi E Ottawa, sift alder leaf litter, 1 sex?; 28.X.1987, D.S. Chandler, sift grass & leaf litter, 1 sex ?