green immigrant leaf weevil
(Polydrusus formosus)
Conservation • Description • Habitat • Biology • Distribution • Taxonomy
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Description |
The head, upper thoracic plate (pronotum), and hardened wing covers (elytra) are covered with bright metallic 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. |
Size |
Total length: 3 ⁄16″ to ¼″ |
Similar Species |
Habitat |
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Biology |
Season |
April through August |
Behavior |
This beetle cannot fly. |
Life Cycle |
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Larva Food |
Plant roots |
Adult Food |
Young leaves and flowers of hardwood trees and shrubs |
Distribution |
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Sources |
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| 5/25/2024 | ||
Occurrence |
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Common in northeast and north-central United States and adjacent Canadian provinces |
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Taxonomy |
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Order |
Coleoptera (beetles) |
Suborder |
Polyphaga (water, rove, scarab, long-horned, leaf, and snout beetles) |
Infraorder |
Cucujiformia |
Superfamily |
Curculionoidea (snout and bark beetles) |
Family |
Curculionidae (true weevils) |
Subfamily |
Entiminae (broad-nosed weevils) |
Tribe |
Polydrusini |
Genus |
Polydrusus |
Subgenus |
Eudipnus |
Subordinate Taxa |
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Synonyms |
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Curculio formosus Curculio sericeus Polydrusus sericeus Thomsoneonymus sericeus |
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Common Names |
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green immigrant leaf weevil |
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Glossary
Elytra
The hardened or leathery forewings of beetles used to protect the fragile hindwings, which are used for flying. Singular: elytron.
Pronotum
The exoskeletal plate on the upper side of the first segment of the thorax of an insect.
Visitor Photos |
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Luciearl |
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| This little guy took a pontoon ride with us. |
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Alfredo Colon |
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Fretenstew |
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| 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 |
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Slideshows |
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Visitor Videos |
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Other Videos |
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Green Immigrant Leaf Weevil (Polydrusus sericeus) - 2016-05-28 |
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 |
Green broad-nosed weevils, Polydrusus formosus |
About
Published on Mar 30, 2016 |
Polydrusus formosus |
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. |
Broad-nosed Weevil (Curculionidae: Polydrusus) on Grass |
About
Published on Jun 15, 2010 Photographed at Turtle River State Park, North Dakota (14 June 2010). |
Polydrusus formosus - www.gdoremi.altervista.org |
About
Published on Apr 21, 2015 Polydrusus formosus |
Visitor Sightings |
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Report a sighting of this insect. |
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Luciearl |
Location: Cass County This little guy took a pontoon ride with us. |
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Sarah |
Location: 7xxx Jocelyn Rd N, Grant (Stillwater area) Numerous on Ninebark bush |
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| Alfredo Colon 5/31/2021 |
Location: Woodbury, Minnesota |
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| Alfredo Colon 8/12/2019 |
Location: Woodbury, Minnesota |
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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 |
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