Gyrinus bifarius Fall, 1922

Gyrinus bifarius was reported from New Brunswick by Oygur and Wolfe (1991) and Roughley (1991), from Nova Scotia by Roughley (1991), and from Prince Edward Island by Majka (2008) (Fig. 8). Morrissette (1979) noted records from lakes and riv-

ers while Oygur and Wolfe (1991) reported that 74% of specimens came from lotic habitats.