Dineutus assimilis Kirby, 1837

Webster, Reginald P. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Gyrinidae, Carabidae, and Dytiscidae, ZooKeys 179, pp. 1-10 : 3-4

Dineutus assimilis Kirby, 1837 Map 1

Material examined.

New Brunswick, Carleton Co., Juniper Station in the Juniper Barren, 46.5538°N, 67.1840°W, 21.VI.2005, R. P. Webster, black spruce / tamarack bog, margin of pond (2, RWC). Gloucester Co., off Hwy 8 near Allardville, 47.4303 °N, 65.5163°W, 25.VI.2005, R. P. Webster, black spruce bog, on margin of small shallow pond with emergent grasses (1, RWC). Queens Co., ca. 3.5 km W of Lower Gagetown, 45.7497°N, 66.1846°W, 13.V.2008, R. P. Webster, old red oak and red maple forest, in small pond (1, RWC); Cranberry Lake P.N.A. [Protected Natural Area], 46.1125°N, 65.6075°W, 28.VII.2009, R. Webster & M.-A. Giguère, old red oak forest, u.v. light (1, AFC). York Co., Canterbury, Browns Mtn. Fen complex, 45.8841°N, 67.6428°W, 8.VI.2004, D. Sabine & R. Webster, sedge marsh in small pond (1, RWC); Charters Settlement, 45.8395°N, 66.7391°W, 23.VII.2007, R. P. Webster, mixed forest, u.v. light (1, RWC).

Collection and habitat data.

In New Brunswick, Dineutus assimilis was collected along pond margins with scattered emergent vegetation in black spruce ( Picea mariana (Mill.) BSP) and tamarack ( Larix laricina (Du Roi) Koch.) bogs, in a small pond in a Carex marsh, and in a small pond on the margin of a red oak ( Quercus rubra L.) and red maple ( Acer rubrum L.) forest. A few individuals were collected at ultraviolet light. Adults were captured during May, June, and July.

Distribution in Canada and Alaska.

BC, AB, SK, MB, ON, QC, NB, PE ( Roughley 1991).