Knapweed Gall Weevil vs Agave Snout Weevil
Side-by-side species comparison
| Attribute | Knapweed Gall Weevil | Agave Snout Weevil |
|---|---|---|
| Scientific Name | Bangasternus fausti | Scyphophorus acupunctatus |
| Order | Coleoptera | Coleoptera |
| Family | Curculionidae | Curculionidae |
| Size | 4-6 mm | 10-15 mm |
| Habitat | Grasslands | Farmland |
| Diet | Gall Makers | Herbivores |
| Regions | Europe, Central Asia | Mexico, Southwestern United States, Mediterranean (invasive) |
| Conservation | Least Concern | Least Concern |
Knapweed Gall Weevil
A weevil that induces galls in knapweed flower heads. Larvae develop inside the enlarged flower buds. Used in biological control of invasive knapweeds in North America.
Did You Know?
Released in North America as biocontrol for invasive spotted knapweed, which costs ranchers millions annually.
Agave Snout Weevil
A large, black weevil that attacks agave and yucca plants by boring into the base. It can destroy entire agave plantations used for tequila production.
Did You Know?
Infestations of this weevil have threatened Mexico's tequila industry by killing the blue agave plants used to make the spirit.