Knobbled Weevil vs Brown Willow Beetle
Side-by-side species comparison
| Attribute | Knobbled Weevil | Brown Willow Beetle |
|---|---|---|
| Scientific Name | Karocolens pittospori | Galerucella lineola |
| Order | Coleoptera | Coleoptera |
| Family | Curculionidae | Chrysomelidae |
| Size | 15-22 mm | 4-6 mm |
| Habitat | Forests | Rivers & Streams |
| Diet | Wood Feeders | Herbivores |
| Regions | Oceania (New Zealand) | Europe |
| Conservation | Least Concern | Least Concern |
Knobbled Weevil
A large, knobbled weevil endemic to New Zealand, covered in rough tubercles that give it a bark-like appearance. It is nocturnal and flightless, found in native forests. Its rough texture provides excellent camouflage against tree bark.
Did You Know?
When disturbed, the knobbled weevil plays dead and drops to the ground, where its bark-like texture makes it nearly invisible among leaf litter.
Brown Willow Beetle
A small brown beetle that feeds on willow leaves and can cause significant defoliation. Has been used as a biological control agent for purple loosestrife in North America.
Did You Know?
A close relative was deliberately introduced to North America as biological control for invasive purple loosestrife.