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Tetropium fuscum (Fabricius, 1787) (CABI)
Brown spruce longhorned beetle
Central Europe and Asia (Sweeney et al. 2001)
Not yet introduced to the United States, but has been established in Nova Scotia, Canada since 1990 (Sweeney et al. 2001)
Can be spread through the movement of infested wood products (Rhainds et al. 2011)
Colonizes and attacks healthy spruce trees (Picea spp.) (Heustis et al. 2018)
Brown Spruce Longhorn Beetle, back; collected in Halifax County, Nova Scotia, Canada
Photo by Hanna Royals (screen aid from USDA, APHIS, PPQ)
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CABI. Invasive Species Compendium. Tetropium fuscum. CAB International. [Accessed Mar 24, 2023].
Heustis, A., E.R.D. Moise, R. Johns, D.S. Pureswaran, and S.B. Heard. 2018. Impact of an invasive longhorned beetle, Tetropium fuscum (Coleoptera: Cerambycidae), on community structure of subcortical and wood-associated insects in Eastern Canada. Environmental Entomology 47(1):39–47.
Rhainds, M, W.E. Mackinnon, K.B. Porter, J.D. Sweeney, and P.J. Silk. 2011. Evidence for limited spatial spread in an exotic longhorn beetle, Tetropium fuscum (Coleoptera: Cerambycidae). Journal of Economic Entomology 104(6):1928-1933.
Sweeney, J., G. Smith, J.E. Hurley, K. Harrison, P. deGroot, L. Humble, and E. Allen. 2001. The brown spruce longhorn beetle in Halifax: pest status and preliminary results of research. In: Fosbroke, S.L.C., and K. W., Gottschalk. Proceedings of the U.S. Department of Agriculture Interagency Research Forum on Gypsy Moth and Other Invasive Species. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. p. 6-10.