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Brown Spruce Longhorned Beetle

Scientific Name

Tetropium fuscum (Fabricius, 1787) (CABI)

Common Name

Brown spruce longhorned beetle

Native To

Central Europe and Asia (Sweeney et al. 2001)

Date of U.S. Introduction

Not yet introduced to the United States, but has been established in Nova Scotia, Canada since 1990 (Sweeney et al. 2001)

Means of Introduction

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
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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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Distribution / Maps / Survey Status


Selected Resources

The section below contains highly relevant resources for this species, organized by source.

International Government
State and Local Government