Dineutus hornii 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 : 359-360

Dineutus hornii Roberts, 1895

NEW BRUNSWICK: Charlotte Co.: Twin Lakes , VI.1989, VII.1989, S. Bedell (6, NBM) ; Kent Co.: Kouchibouguac National Park , 25.VII.1979, Y. Chaisson (1, UMNB) ; Round Lake , 1.VIII.2000, D.F. McAlpine (4, NBM) ; Kings Co : R.F. Mill- er, 26.VIII.1987, R.F. Miller (4, NBM) ; Saint John Co.: Saint John , 19.VIII.1900, VI.190?, VII.190?, W. McIntosh (4, NBM) ; Sunbury Co.: Burton , 31.V.2003, R.P. Webster, shallow lake (2, RWC) ; Westmoreland Co.: Irishtown , 1.X.1975, M. Me-

lanson (1, UMNB); Moncton , 12.VIII.2001, S. Gaudreau (1, UMNB) ; Moncton , IX.1977, S. Fournier (1, UMNB) ; York Co.: Fredericton, 26.IX.1987, M. Bernard (1, UMNB). NOVA SCOTIA: 155 specimens examined from Antigonish, Cape Breton , Guysborough , Halifax , Hants , Kings , Lunenburg , Queens , and Yarmouth counties. The earliest records are from 1947 [Halifax Co.: Nine Mile River, 18.VIII.1947 (5, NSMC); Doyles Lake, 30.VII.1947, D.A. Livingston, J. Lewin, & L. Decker (1, NSMC); Kings Co.: Kentville, 21.V.1947, V.R. Vickery (5, NSAC)] .

Dineutus hornii 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). Note: this species has sometimes been referred to as “ Dineutus horni ” a name which Majka (2008) designated as an incorrect subsequent spelling of “ Dineutus hornii .” Morrissette (1979) reported it from boggy and semi-boggy lakes.