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Upcoming Events

Discussion of 2018 gathering

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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Otiorhynchus singularis - Raspberry Weevil

Weevil - Otiorhynchus singularis weevil - Otiorhynchus singularis Mottled brown weevil - Otiorhynchus singularis weevil - Otiorhynchus singularis Otiorhynchus singularis? - Otiorhynchus singularis Raspberry Weevil - Otiorhynchus singularis - female Weevil - Otiorhynchus singularis Otiorhynchus singularis
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 Entiminae (Broad-nosed Weevils)
Tribe Otiorhynchini
Genus Otiorhynchus
Species singularis (Raspberry Weevil)
Other Common Names
Clay-colored Weevil (CCW)(1)
Explanation of Names
Otiorhynchus (Metopiorrhynchus) singularis (Linnaeus 1767)
6.5-8.0 mm(2)
Elytra have very distinct rows of punctures (see comment on this image, below)
native to c. & n. Europe, adventive in NA and established in the east (NF-so.ON-DC) and the west (BC-OR-ID)(2)(3)
in Europe, mostly grassy lowlands(4)
key activity in the spring and fall; adults start to emerge in the early spring, often in March(1)
major pest of raspberry, other small fruit, ornamentals, conifer seedlings(2)
earliest record in our area: 1872(5)
Internet References
Fact sheet (Rosetta 2004)(1)
Works Cited
1.Pacific Northwest Nursery IPM Website
2.Insects and Arachnids of Canada Series, Part 25. Coleoptera, Curculionidae, Entiminae.
Donald E. Bright, Patrice Bouchard. 2008. 2008. NRC Research Press, Ottawa, Ontario, Canada.
3.The weevils (Coleoptera: Curculionoidea) of the Maritime Provinces of Canada, II: New records from Nova Scotia...
C.G. Majka, R.S. Anderson, & D.B. McCorquodale. 2007. The Canadian Entomologist 139: 397–442.
4.Pests of ornamental trees, shrubs and flowers: a colour handbook. 2nd ed.
Alford D.V. 2012. Academic Press. 480 pp.
5.Immigrant phytophagous insects on woody plants in the United States and Canada: an annotated list
Mattson W.J., Niemela P., Millers I., Inguanzo Y. 1994. General Technical Report NC-169. St. Paul, MN: USDA Forest Service, North Central Forest Experiment Station.