Green Immigrant Leaf Weevil vs Thin-neck Cave Beetle
Side-by-side species comparison
| Attribute | Green Immigrant Leaf Weevil | Thin-neck Cave Beetle |
|---|---|---|
| Scientific Name | Polydrusus formosus | Pseudanophthalmus parvicollis |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Carabidae |
| Size | 5-7 mm | 4-5 mm |
| Habitat | Orchards | Caves |
| Diet | Herbivores | Detritivores |
| Regions | Europe, introduced to Northeastern North America | United States |
| Conservation | Least Concern | Endangered |
Green Immigrant Leaf Weevil
A small, brilliant metallic green beetle covered in tiny iridescent scales that produce its striking coloration. It is native to Europe but has become established in parts of North America.
Did You Know?
Its brilliant green color comes from microscopic scales on its body; once these scales wear off, the beetle appears dull brown or black underneath.
Thin-neck Cave Beetle
A narrowly endemic cave beetle with a distinctively slender pronotum. It inhabits caves in the Appalachian karst region.
Did You Know?
Its narrow neck (pronotum) helps it squeeze through tiny fissures in cave rock.