Willow Bean-Gall Sawfly vs Cabbage Stem Weevil
Side-by-side species comparison
| Attribute | Willow Bean-Gall Sawfly | Cabbage Stem Weevil |
|---|---|---|
| Scientific Name | Pontania proxima | Ceutorhynchus pallidactylus |
| Order | Hymenoptera | Coleoptera |
| Family | Tenthredinidae | Curculionidae |
| Size | 3-5 mm | 2.5-3.5 mm |
| Habitat | Wetlands | Farmland |
| Diet | Herbivores | Herbivores |
| Regions | Europe, Western Asia | Europe |
| Conservation | Least Concern | Least Concern |
Willow Bean-Gall Sawfly
A tiny sawfly that induces distinctive bean-shaped galls on the leaves of various willow species. Each gall contains a single larva feeding on internal gall tissue.
Did You Know?
The gall-inducing chemicals secreted by the larva redirect the plant's growth to create a nutrient-rich chamber specifically for the larva's benefit.
Cabbage Stem Weevil
A grey weevil that mines inside brassica stems. Larvae tunnel through stems causing weakening. One of several Ceutorhynchus species affecting oilseed rape.
Did You Know?
Larval tunneling weakens plant stems to the point where they may snap in windy conditions.