Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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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 Isochnus sequensi

Flea Weevil - Isochnus sequensi weevil - Isochnus sequensi Weevil on black willow - Isochnus sequensi weevil - Isochnus sequensi Isochnus populicola - Isochnus sequensi Weevil Beetle - Isochnus sequensi Poplar Blackmine Beetle? - Isochnus sequensi Blotch mines on weeping willow - Isochnus sequensi
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 Curculioninae
Tribe Rhamphini (Flea Weevils)
Subtribe Rhamphina
Genus Isochnus
Species sequensi (Isochnus sequensi)
Synonyms and other taxonomic changes
Isochnus populicola (Silfverberg 1977)
Explanation of Names
Isochnus sequensi (Stierlin 1894)
often mistaken for I. rufipes but has a band of white scales along the base of the pronotum and a more elongate body form*
native to Europe, introduced along the ne. coast of the US into adjacent Canada (NF-ON to NJ-IN)(1)
hosts: Salix, Populus (Salicaceae)(1)
Internet References
Works Cited
1.First record of Orchestes fagi (L.) in North America, with a checklist of the North Amercian Rhamphini
Sweeney, J., R.S. Anderson, and R.P. Webster. 2012. The Coleopterists Bulletin, 66: 297-304.
2.British leafminers