Haliplus dorsomaculatus was reported from Newfoundland by Roughley (1991), however, Kenner (2005) re-described and reviewed H. dorsomaculatus and has established that it is a western North American species found from southern British Columbia to northern California, and east to Montana and Wyoming. Th ere is no evidence that it occurs in Newfoundland.
Notes: NB, New Brunswick; PE, Prince Edward Island; NS, mainland Nova Scotia; CB, Cape Breton Island; NF, insular Newfoundland; LB, Labrador.
Regional Distribution: CT, Connecticut; MA, Massachusetts; ME, Maine; NH, New Hampshire; NY, New York; ON, Ontario; QC, Québec; RI, Rhode Island; VT, Vermont. Information is derived from Brigham (1996), Chandler (2001), Majka (2008), Roughley (1991), Sikes (2004), and Vondel (2005).
For the purposes of this treatment, northeastern North America is taken to consist of the following jurisdictions: Connecticut, Labrador, Massachusetts, Maine, New Brunswick, New Hampshire, New York, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Québec, Rhode Island, Saint-Pierre et Miquelon, and Vermont.