Polydrusus formosus
species of beetle
Polydrusus formosus, commonly known as the green immigrant leaf weevil, is a species of broad-nosed weevil belonging to the family Curculionidae, subfamily Entiminae.
Distribution
This beetle is present in most of Europe and in the Nearctic realm.
Description
The adults grow up to 5–6 millimetres (0.20–0.24 in) long. The colour of this insect is brilliant metallic green, as the black body is coated in emerald round scales. If the scales wear off the body beneath appears dark. Antennae are pale with a dark club. These beetles show a short groove between the eyes and evident striae on the elytra.
Biology
Adults can mostly be encountered from April through August. These beetles lay their eggs in the bark or leaves of the host-plants. The soil-inhabiting larvae grow up to 7 millimetres (0.28 in) long feeding on juicy plant roots.
The public source identifies “Polydrusus formosus” as species of beetle. This brief keeps that definition visible, then builds a research path around Polydrusus, formosus and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 19, 2026. The linked authority identifier is Q7226300. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Polydrusus formosus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.