Cottonwood Leaf Beetle vs Alfalfa Weevil Parasitoid
Side-by-side species comparison
| Attribute | Cottonwood Leaf Beetle | Alfalfa Weevil Parasitoid |
|---|---|---|
| Scientific Name | Chrysomela scripta | Bathyplectes curculionis |
| Order | Coleoptera | Hymenoptera |
| Family | Chrysomelidae | Ichneumonidae |
| Size | 6-9 mm | 2-4 mm |
| Habitat | Farmland | Farmland |
| Diet | Wood Feeders | Parasitoids |
| Regions | North America | Europe, North America |
| Conservation | Least Concern | Least Concern |
Cottonwood Leaf Beetle
A variable beetle with pale yellow elytra marked with dark elongated spots and streaks. It is a common defoliator of cottonwood, poplar, and willow trees across North America.
Did You Know?
Larvae release volatile salicylaldehyde from glands on their thorax and abdomen, producing a distinctive medicinal smell that repels ants.
Alfalfa Weevil Parasitoid
A small parasitoid wasp that attacks alfalfa weevil larvae in North America. It was introduced from Europe as a classical biological control agent.
Did You Know?
This wasp reduced alfalfa weevil populations by over 75% in some areas after its introduction.