Dineutus nigrior Roberts, 1895

Majka, Christopher & Kenner, Rex, 2009, The Gyrinidae (Coleoptera) of the Maritime Provinces of Canada: new records, distribution, and faunal composition, ZooKeys 22 (22), pp. 355-372 : 360

Dineutus nigrior Roberts, 1895

NEW BRUNSWICK: Albert Co.: Fundy National Park, McLaren’s Pond , 16.VII.1972, J. Mullein, pond (1, FNP) ; Kent Co.: Kouchibouguac National Park , 10.VII.1979, J. Boudreau (1, UMNB) ; Kouchibouguac National Park , 26.VII.1981, M. LeBlanc (1, UMNB) ; Round Lake , 1.VIII.2000, D.F. McAlpine (6, NBM) ; Saint John Co.: Saint John , 27.V.1907, G.D.F. (1, NBM) ; Westmoreland Co.: Moncton , 28.VIII.1991, L. Arsenault (1, UMNB) ; Moncton , 15.IX.1992, M. Chaisson (1, UMNB). NOVA SCOTIA: 113 specimens examined from Annapolis, Antigonish, Colchester, Cumberland, Guysborough, Halifax, Hants, Kings, Lunenburg, Queens, Victoria, and Yarmouth counties. The earliest records are from 1947 [Halifax Co.: South Weaver Lake, 11.VII.1947, D.A. Livingston, J. Lewin, & L. Decker (1, NSMC); Spruce Hill Rd. Lake, 4.VI.1947, D.A. Livingston & E. Gorham (1, NSMC); Hants Co.: Lily Lake, 14.VII.1947, D.A. Livingston & J. Lewin (1, NSMC)] .

Dineutus nigrior is newly recorded in New Brunswick and Nova Scotia. It was reported from Prince Edward Island by Majka (2008). It is widely distributed in the region (Fig. 7). Morrissette (1979) reported it from semi-boggy lakes where the water is stagnant.