Vestal Cuckoo Bumblebee vs Spruce Budworm Parasite

Side-by-side species comparison

Attribute Vestal Cuckoo Bumblebee Spruce Budworm Parasite
Scientific Name Psithyrus vestalis Meteorus trachynotus
Order Hymenoptera Hymenoptera
Family Apidae Braconidae
Size 15-20 mm 3-5 mm
Habitat Underground Forests
Diet Parasites Parasitoids
Regions Europe North America
Conservation Least Concern Least Concern

Vestal Cuckoo Bumblebee

A brood parasitic bumblebee that takes over colonies of the Buff-tailed Bumblebee. The female kills or subdues the host queen and uses the workers to raise her own offspring.

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Did You Know?

Females infiltrate host bumblebee nests and take them over by force, enslaving the workers to raise cuckoo brood.

Spruce Budworm Parasite

A small brown braconid wasp that is a key natural enemy of the spruce budworm in North American boreal forests. It suspends its cocoon on a silk thread from the host.

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Did You Know?

Its cocoon dangles from a silk thread like a tiny pendulum, which may protect it from ground-dwelling predators.