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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Scolytus multistriatus - Smaller European Elm Bark Beetle

Scolytid - Scolytus multistriatus Scolytid - Scolytus multistriatus Coleo - Scolytus multistriatus Bark beetle - Scolytus multistriatus - male Dutch Elm Weevil - Scolytus multistriatus Scolytinae - Scolytus multistriatus Beetle - Scolytus multistriatus Beetle - Scolytus multistriatus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea (Snout and Bark Beetles)
Family Curculionidae (Snout and Bark Beetles)
Subfamily Scolytinae (Bark and Ambrosia Beetles)
Tribe Scolytini
Genus Scolytus
Species multistriatus (Smaller European Elm Bark Beetle)
Explanation of Names
Scolytus multistriatus (Marsham 1802)
2.2-3.0 mm
prominent spine on abdominal segment 2 separates S. multistriatus from S. rugulosus, the only other hardwood-infesting western scolytid. (UBC Forestry)
across US, w. Canada to c. Mexico (map)(1)
Elm (Ulmus, Ulmaceae)(1)
A vector of Dutch elm disease
earliest record in our area: MA 1909(2)
Internet References
Fact sheet (anon. 2011)(3)
Works Cited
1.Atkinson T.H. (200_-2018) Bark and ambrosia beetles
2.Exotic bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) in the United States: potential and current invaders
Haack R.A., Rabaglia R.J. 2013. In: Potential invasive pests of agricultural crops. Peña J.E., ed. CABI International, Wallingford, UK, pp. 48-74.
3.Forest invasive alien species (Canadian Forest Service)