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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Curculionoidea » Snout and Bark Beetles (Curculionidae) » Broad-nosed Weevils (Entiminae) » Polydrusini » Polydrusus » Pale Green Weevil (Polydrusus impressifrons)

Species Polydrusus impressifrons - Pale Green Weevil

Classification · Explanation of Names · Size · Range · Food · Life Cycle · Remarks · Works Cited
Leaf Weevil - Polydrusus impressifrons Pale Green Weevil with open jaw - Polydrusus impressifrons Polydrusus weevil from Oregon - Polydrusus impressifrons Beetle - Polydrusus impressifrons Polydrusus formosus? - Polydrusus impressifrons Pachyrhinus elegans? - Polydrusus impressifrons Polydrusus impressifrons coupling - Polydrusus impressifrons - male - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea
Family Curculionidae (Snout and Bark Beetles)
Subfamily Entiminae (Broad-nosed Weevils)
Tribe Polydrusini
Genus Polydrusus
Species impressifrons (Pale Green Weevil)
Explanation of Names
Polydrusus impressifrons Gyllenhal 1834
Size
3.8‒5.6 mm(1)
Range
native to the Palaearctic (widespread), adventive in NA, established across s.Canada south to CA‒CO‒MD(2)
Food
Adults on many tree/shrub species but especially Populus & Salix spp. (Salicaceae), and members of the birch family (Betulaceae)(2)
Life Cycle
Eggs laid around scars and beneath loose bark in roughened areas, esp. at the cut ends of pruned branches. Young larvae drop to the ground and feed on roots. Pupation in he soil. Overwinter as pupa(3)
Remarks
earliest record in our area: NY 1906(4)
member of the subg. Eustolus C.G. Thomson 1859 that includes 20 spp. (all Palaearctic)
Works Cited
1.Lompe A. (2002‒) Die Käfer Europas: Ein Bestimmungswerk im Internet
2.The Polydrusus weevils (Coleoptera: Curculionidae) of the United States of America and Canada: identification...
Lisak SC, Shanovich HN, Lindsey ARI, Aukema BH. 2024. The Canadian Entomologist. 156: e10.
3.Eastern Forest Insects
Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.
4.Pacific Northwest Nursery IPM Website
Contributed by Cotinis on 18 June, 2007 - 4:45am
Additional contributions by v belov, Marci Hess, Tyler Hedlund
Last updated 14 May, 2024 - 8:48pm

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