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Genus Polydrusus

Metallic green snout beetle - Polydrusus formosus Weevil - Polydrusus formosus Weevil - Polydrusus formosus Which Polydrusus? - Polydrusus formosus Weevil - Polydrusus formosus Green Immigrant Leaf Weevil  - Polydrusus formosus Beetle - Polydrusus formosus Pale Green Weevil  - Polydrusus formosus
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 Polydrusini
Genus Polydrusus
Explanation of Names
Polydrusus Germar 1817
7 spp. (incl. 3 adventive) in our area, 4 spp. reach Canada(1)(2) (~120 spp. in ~20 subgenera total)
~5-8 mm
Body completely covered with round scales, which may be metallic green, grey, yellowish or brown; most species of uniform colour, but 2 N-Am. species are patterned in brownish tinges. Legs brown or yellowish, with or without small femoral tooth.
Key to most our spp. in(3)
in our area, ne. US & adjacent Canada, and sw. US (AZ-NM)(1)
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.Bousquet Y., ed. (1991) Checklist of the beetles of Canada and Alaska
3.Notes on North American species of Polydrusus Germar (Coleoptera: Curculionidae, Brachyderinae) .
Sleeper, E.L. 1957. The Ohio Journal of Science. 57(3): 129-134.