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Species Scolytus schevyrewi - Banded Elm Bark Beetle

Invasive Scolytid, Banded elm bark beetle - Scolytus schevyrewi Curculionidae - Scolytini - ? - Scolytus schevyrewi Curculionidae - Scolytini - ? - Scolytus schevyrewi
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 (Typical Bark Beetles)
Subtribe Scolytina
Genus Scolytus
Species schevyrewi (Banded Elm Bark Beetle)
Explanation of Names
Scolytus schevyrewi Semenov 1902
3-4 mm (Lee et al. 2006)
The band can be dark to absent (Lee et al. 2006)
Native to C. & E. Asia, adventive in NA, now widespread from Canada (ON-BC) to Mexico, but not known to occur in se. US(1)(2)
hosts: Ulmus spp. (in the US, has attacked U. americana, U. thomasii, U. pumila, U. procera)
Life Cycle
In China where the biology is best known, produces 2-3 generations per year; overwinters as mature larvae or pupae (Lee et al. 2006)
earliest record in our area: CO 1994(3)
vector of Ophiostoma novo-ulmi, the fungal pathogen causing Dutch elm disease; when beetles are allowed to attack American elm bolts infected with Dutch elm disease, emerging beetles often carry the fungal spores. (Lee et al. 2006)
See Also
S. multistriatus lacks the band, is slightly smaller, has posteriolateral teeth on abdominal sternites 2-4 and the 2nd abdominal ventral spine more anteriorly placed (Lee, et al. 2006)
Print References
Cognato A.I. et al. (2010) The native and introduced bark and ambrosia beetles of Michigan (Curculionidae: Scolytinae). Great Lakes Entom. 42(3-4): 101-120.
Internet References
Bark and ambrosia beetles(1) - T.H. Atkinson
Pest Alert (Lee et al. 2006)
Works Cited
1.Atkinson T.H. (200_-2018) Bark and ambrosia beetles
2.New Curculionoidea (Coleoptera) records for Canada
Douglas H., Bouchard P., Anderson R.S., de Tonnancour P., Vigneault R., Webster R.P. 2013. ZooKeys 309: 13–48.
3.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.