Haliplus longulus LeConte, 1850

Queens Co.: Brackley Beach, 26. VI.1985, L. LeSage, pond with filamenous algae and rotting vegetation, (1, CNC) ; Glenroy, 26. VI.1985, L. LeSage and R. Rocho, ditch along railroad, (1, CNC) ; Harrington, 27. VI.1985, L. LeSage, CNC ; north of Pleasant Grove, 27. VI.1985, L. LeSage, (1, CNC) .

The species was recorded from Prince Edward Island by Vondel (2005), however, the collection data for this species have not previously been published.