Species Polydrusus impressifrons - Pale Green Weevil

Classification · Other Common Names · Explanation of Names · Range · Food · Life Cycle · Remarks · Internet References · Works Cited

Coleoptera. Curculionidae. Polydrusus. - Polydrusus impressifrons

Polydrusus formosus? - Polydrusus impressifrons

Pachyrhinus elegans? - Polydrusus impressifrons

Morgan Hill Weevil - Polydrusus impressifrons

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)

Other Common Names

Leaf Weevil(1)

Explanation of Names

Polydrusus (Eustolus) impressifrons Gyllenhal 1834

Range

native to Europe, adventive in NA (introduced ca. 1913), established in the northeast west to MB(2), as well as in OR

Food

Adults were found mating on small plum trees and feeding on green plums and leaves.(3)

Life Cycle

Eggs are laid around scars and beneath loose bark in roughened areas. The cut ends of pruned branches are especially attractive oviposition sites. Young larvae drop to the ground and feed on the roots of their hosts. Pupation occurs in the soil.(4)

Overwinter as pupa(4)

Remarks

earliest record in our area: NY 1906(1)

Internet References

Fact sheets: Rosetta (2012)(1)

Works Cited

1.	Pacific Northwest Nursery IPM Website

2.	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.

3.	Rhynchophora or weevils of North Eastern America Blatchley and Leng. 1916. Nature Publishing Co., Indianapolis, Indiana. 682 pp.

4.	Eastern Forest Insects Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.

Contributed by Cotinis on 18 June, 2007 - 4:45am
Additional contributions by v belov, Marci Hess, Tyler Hedlund
Last updated 30 July, 2023 - 12:08pm

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