green immigrant leaf weevil
(Polydrusus formosus)
| Conservation Status | IUCN Red List |
not yet assessed |
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NatureServe |
NNA - Not applicable |
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Minnesota |
not listed |
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| Occurrence | Common in northeast and north-central United States and adjacent Canadian provinces |
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| Flight/Season | April through August |
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| Habitat |
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| Size | Total Length: 3 ⁄16″ to ¼″ |
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| Photo by Fretenstew | |||||||
| Identification | The head, upper thoracic plate (pronotum), and hardened wing covers (elytra) are covered with bright metallic green green scales and no bristles. The elytra are widest near the base and have conspicuous black grooves (striae). The legs are brownish or yellowish-brown and are not covered with green scales. The antennae are pale and the enlarged tip (club) is dark. |
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| Similar Species |
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| Larval Food | Plant roots |
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| Adult Food | Young leaves and flowers of hardwood trees and shrubs |
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| Life Cycle |
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| Behavior | This beetle cannot fly. |
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| Distribution |  |
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| Comments |
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| Taxonomy | Order: |
Coleoptera (beetles) |
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Suborder: |
Polyphaga (water, rove, scarab, long-horned, leaf and snout beetles) |
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Infraorder: |
Cucujiformia |
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Superfamily: |
Curculionoidea (snout and bark beetles) |
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Family: |
Curculionidae (snout beetles, weevils) |
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Subfamily: |
Entiminae (broad-nosed weevils) |
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Tribe: |
Polydrusini |
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| Synonyms | Curculio formosus Curculio sericeus Polydrusus sericeus Thomsoneonymus sericeus |
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| Common Names |
green immigrant leaf weevil |
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Glossary
Elytra
The hardened forewings on an insect used to protect the fragile hindwings, which are used for flying, in beetles and true bugs.
Pronotum
The saddle-shaped, exoskeletal plate on the upper side of the first segment of the thorax of an insect.
| Visitor Photos | |||
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| Fretenstew | |||
Landed on my shoulder from somewhere! It clearly wasn’t a flyer, which allowed me to get a good photo. My fellow Master Gardeners helped to identify. |
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| Bill Reynolds | |||
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| MinnesotaSeasons.com Photos | |||
| Slideshows | ||
| Green Immigrant Leaf Weevil (Polydrusus sericeus) Andree Reno Sanborn |
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| Visitor Videos | |||
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| Other Videos | |||
| Green Immigrant Leaf Weevil (Polydrusus sericeus) - 2016-05-28 Westdelta |
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About
Published on Jun 15, 2016 Polydrusus formosus is a species of broad-nosed weevils belonging to the family Curculionidae, subfamily Entiminae. Geo location: 52.05220 4.24679 |
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| Green broad-nosed weevils, Polydrusus formosus Davide Parisio Perrotti |
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About
Published on Mar 30, 2016 |
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| Polydrusus formosus MICROinACTION |
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About
Published on Apr 28, 2014 They are eaters of young leaves and open blossoms of a wide variety of woodland trees and shrubs. Sono mangiatori di giovani foglie e fiori aperti di un'ampia varietà di alberi nei boschi e sugli arbusti. |
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| Broad-nosed Weevil (Curculionidae: Polydrusus) on Grass Carl Barrentine |
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About
Published on Jun 15, 2010 Photographed at Turtle River State Park, North Dakota (14 June 2010). |
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| Polydrusus formosus - www.gdoremi.altervista.org www.gdoremi.altervista.org |
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About
Published on Apr 21, 2015 Polydrusus formosus |
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| Visitor Sightings | ||||
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This button not working for you? Simply email us at info@MinnesotaSeasons.com. Be sure to include a location. |
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| Fretenstew 6/19/2020 |
Location: St. Paul, Minnesota Landed on my shoulder from somewhere! It clearly wasn’t a flyer, which allowed me to get a good photo. My fellow Master Gardeners helped to identify. |
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| Bill Reynolds 7/16/2017 |
Location: Pennington Co. MN |
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| MinnesotaSeasons.com Sightings | ||||
Last Updated: