Tanysphrus lemnae (Fabricius, 1792)

Webster, Reginald P., Anderson, Robert S., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Anthribidae, Brentidae, Dryophthoridae, Brachyceridae, and Curculionidae, with additions to the fauna of Quebec, Nova Scotia and Prince Edward Island, ZooKeys 179, pp. 349-406 : 353

Tanysphrus lemnae (Fabricius, 1792) Map 13

Material examined.

New Brunswick, Queens Co., just W of Jemseg at "Trout Creek", 45.8231°N, 66.1245°W, 11.IV.2006, R. P. Webster, silver maple swamp, sifting litter from silver maple with multiple trunks (1, RWC); Grand Lake Meadows P.N.A., 45.8227°N, 66.1209°W, 29. VI– 12.VII.2010, R. Webster, C. MacKay, M. Laity & R. Johns, old silver maple forest with green ash and seasonally flooded marsh, Lindgren funnel traps (1, AFC). York Co. Charters Settlement, 45.8456°N, 66.7267°W, 1.V.2010, 5.V.2010, R. P. Webster, beaver pond, on Lemna sp. on pond margin (6, RWC).

Collection and habitat data.

This species is associated with Lemna spp. ( Lemnaceae ) ( Anderson 2002). Most of the specimens from New Brunswick were found on Lemna sp. floating on water near the margin of a beaver pond during May. One individual was sifted from litter in the crotch of a silver maple with multiple trunks during mid April (probably an overwintering site) and another was captured during July in a Lindgren funnel trap in an old silver maple swamp.

Distribution in Canada and Alaska.

BC, AB, SK, MB, ON, QC, NB, NS ( McNamara 1991c; Majka et al. 2007c).