Leaf-Rolling Rose Sawfly vs Variable Cuckoo Bumble Bee
Side-by-side species comparison
| Attribute | Leaf-Rolling Rose Sawfly | Variable Cuckoo Bumble Bee |
|---|---|---|
| Scientific Name | Blennocampa phyllocolpa | Bombus variabilis |
| Order | Hymenoptera | Hymenoptera |
| Family | Tenthredinidae | Apidae |
| Size | 3-5 mm | 15-22 mm |
| Habitat | Underground | Grasslands |
| Diet | Herbivores | Parasites |
| Regions | Europe, introduced to North America | Central and Eastern North America |
| Conservation | Least Concern | Critically Endangered |
Leaf-Rolling Rose Sawfly
A tiny black sawfly that causes rose leaflets to roll downward into tight cylinders. The larva feeds inside the rolled leaf shelter.
Did You Know?
The female injects a chemical into the leaf margin during egg-laying that causes the leaf to roll tightly, creating a protective tube for the developing larva.
Variable Cuckoo Bumble Bee
A rare social parasite bumble bee that takes over colonies of other Bombus species in North America. Queens invade host nests, kill the resident queen, and enslave her workers.
Did You Know?
It produces no workers of its own and depends entirely on the labor of its host species to raise its offspring.