Silvanus bidentatus (Fabricius, 1792)

Majka, Christopher G., 2008, The flat bark beetles (Coleoptera, Silvanidae, Cucujidae, Laemophloeidae) of Atlantic Canada, ZooKeys 2 (2), pp. 221-238 : 227-228

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 strobus L.) ( Pinaceae ) and on maple ( Acer sp.).

Figures

Fig. 1. Distribution of Silvanus bidentatus, Laemophloeus fasciatus, Uleiota debilis, Uleiota d. dubius, Charaphloeus convexulus, and C. sp. nr. adustus in Atlantic Canada.