NEW BRUNSWICK: Kent Co.: Kouchibouguac National Park, (1, CNC); Madawaska Co.: Edmundston, 13.XI.1994, J Bourque, on beaver, (1, UMNB). York Co.: Lake George, (1, CNC). NEWFOUNDLAND: Pasadena, 15.X.1989, M. Bennett, beaver carcass, (1, MUN); Grand Falls, Island Pond, 12.X.2002, Biology 4150, (1, MUN).
Peck (2007) indicated Leptinillus validus as occurring in New Brunswick. Peck (1991) also listed it from Newfoundland, but it is not so indicated in Peck (2007). The above records confirm its presence in insular Newfoundland (Fig. 12). Adults and larvae are ectoparasites of beaver ( Castor canadensis Kuhl) in the northern part of their range in North America. They are occasionally, and apparently accidentally, also found on muskrats ( Ondatra zibethicus (Linnaeus)) (Peck 2007).