Silvanus bidentatus (Fabricius, 1792)

NOVA SCOTIA: Annapolis Co.: Durland Lake, 21.VI.2003, P. Dollin, eastern hemlock/balsam fir/black spruce forest, (1, NSMC); Cape Breton Co.: New Waterford, 16.IX.1993, T.N. Kanne, (1, CBU); Colchester Co.: 3.VI.1995, C. Corkum, old deciduous forest, flight-intercept trap, (1, NSMC); Cumberland Co.: Diligent River, 27.VII.1988, E. Georgeson, UV light trap, (1, NSMC); Oxford, 9.VIII.1988, E. Georgeson, UV light trap, (1, NSMC); Guysborough Co.: Malay Lake, 2-15. VI.1997, D.J. Bishop, red spruce forest, flight-intercept trap, (1, NSMC); Trafalgar, 19.VII.1992, S. and J. Peck, car net, (1, JCC); Halifax Co.: Abraham’s Lake, 2-15. VI.1997, 15-30.VI.1997, 1-16.VII.1997, D.J. Bishop, old-growth red spruce forest, flight-intercept trap, (4, NSMC); Bedford, 22.VIII.1988, B. Pothier, (1, NSMC); Big St. Margaret’s Bay, 15-30.VI.1997, D.J. Bishop, old-growth red spruce forest, flight-intercept trap, (1, NSMC); Halifax, 29.VII.1991, R. Stuart, (12, NSMC); Point Pleasant Park, 1.IX.2000, 9.IX.2000, 10.VIII.2001, 2.VI.2002, 9.VI.2002, 18.VI.2002, 22.IX.2002, coniferous forest, under bark of Picea rubens and Pinus strobus, (14, CGMC); Kings Co.: Kentville, 1.VIII.1998, D.H. Webster, on maple, (2, DHWC); Lunenburg Co.: Chester, 6.VI.1968, 8.VI.1968, B. Wright, (2, NSMC); Pictou Co.: Marshy Hope, 23.VI.1994, M. LeBlanc, (1, JOC); Marshy Hope, 9.VI.1995, M. LeBlanc, (1, NSNR); Queens Co.: Kejimkujik National Park, 16.VI.2004, M. LeBlanc, flight-intercept trap, (1, NSNR); Sixth Lake, 18.VI.2003, P. Dollin, old-growth hemlock forest, on red spruce log, (1, NSMC).

This introduced Palearctic species is newly recorded in Nova Scotia ( Fig. 1). Bousquet (1991) reported it from New Brunswick. Species of Silvanus are found under the bark of logs and dead trees where they are at least partly fungivorous ( Thomas 1993). In Nova Scotia they have most frequently been found in coniferous forests, under the bark of red spruce ( Picea rubens Sarg.) and white pine ( Pinus strobu s L.) ( Pinaceae) and on maple ( Acer sp.).