NEW BRUNSWICK: Kent Co.: Kouchibouguac National Park, 2.VII.1977, J.R. Vockeroth, (1, CNC); Kings Co.: 5 km north of Bayswater, 19.VIII.1983, D. Larson, (1, MUN); Queens Co.: near Jemseg, 45° 49.443΄ N, 66° 07.510΄ W, 7.VI.2003, 1.VII.2003, R.P. Webster, silver maple forest, marsh among emergent sedges and reeds (3, RWC); Westmorland Co.: Tantramar Marsh near Sackville, 17.VIII.1983, D. Larson, (1, MUN); York Co.: East Branch Lyons Stream east of Harvey, 21VIII.1983, D. Larson, (4, MUN); Fredericton Junction, 27.IV.1986, D. Larson, (1, MUN); New Maryland off Hwy 2, E of Baker Brook, 45.8764°N, 66.6248°W, 4.VI.2005, R.P.Webster, old growth cedar swamp, in small brook with sandy/clay bottom and areas of leaf debris, (1, RWC); New Maryland, Charters Settlement, 45° 49.80΄ N, 66° 44.08΄ W, 3.VI.2003, R.P.Webster; mixed forest in small sedge marsh in water filled pools, (2, RWC); New Maryland, Charters Settlement, 45° 50.57΄ N, 66° 43.67΄ W, 4.V.2003, R.P. Webster, mixed forest in small sedge marsh in small pools among sedges (2, RWC).
Haliplus longulus is newly recorded from New Brunswick ( Fig. 3). It was previously reported from Nova Scotia by Matheson (1912) (although Roughley (1991) failed to note this record) and from Prince Edward Island by Vondel (2005) and Majka (2008). In Atlantic Canada there are records from small pools, ponds, ditches, and small brooks.