NOVA SCOTIA: Colchester County: Debert, 6 July 1990 & 7 July 1994, T.D. Smith, NSNR; Debert, 12 June 1994, 25 June 1994, 18 July 1996, & 19 July 2000, J. Ogden, NSNR; Brookside, 20 August 2002, C.G. Majka, 2 specimens, CGMC; Halifax County: St. Margaret’s Bay, 9 August 1945, D.C. Ferguson, NSMC; Fleming Park, 5 August 2002, C.G. Majka, CGMC; Pt. Pleasant Park, 18 August 2001 & 23 June 2002, C.G. Majka, CGMC; Purcell’s Cove, 26 May 2002, C.G. Majka, 2 specimens, CGMC; southend Halifax, 19 June 2001, 12 August 2001, & 25 August 2002, C.G. Majka, 7 specimens, CGMC; Kings County: Kentville, 30 May 1950, ACNS; Kingston, 30 June 2002, C.G. Majka, 4 specimens, CGMC; Lunenburg County: Bridgewater, 16 June 1965, B. Wright, NSMC; Highway 208, 18 August 1994, J. Ogden, NSNR. PRINCE EDWARD ISLAND: Queens County: Wood Islands, 16 July 2002 & August 20 2002, C.G. Majka, 5 specimens, CGMC.
Newly recorded from Nova Scotia and Prince Edward Island. Broadly distributed in eastern and central North America from North Dakota south to Texas and Florida and north to central Maine (Gordon 1976); in Canada recorded from the Northwest Territories, Alberta, Ontario, and Québec (McNamara 1991). Specimens from PEI were found in coastal dunes adjacent to the Northumberland Ferries terminal which connects PEI to NS by ferry. The species has not been found in other areas of PEI raising the possibility that S. tenebrosus may have been accidentally introduced there.