Ilybius biguttulus (Germar, 1824)

Prince Edward Island: locality data lost, 1974-1983, (3, UPEI); Kings Co.: Valleyfield, 8.VII.1982, V. Friesen, by stream, (1, UPEI) ; Queens Co.: Charlottetown, 25. VI.1978, L.S. Th ompson, (1, ACPE) ; Watervale, 29.VII.1970, R. Wenn, pond edge, (1, UPEI) .

Newly recorded on Prince Edward Island, this species is found in sun-warmed, permanent lentic habitats in dense aquatic vegetation (Larson et al. 2000).