European Orussid Wood Wasp vs Gypsy Cuckoo Bumble Bee

Side-by-side species comparison

Attribute European Orussid Wood Wasp Gypsy Cuckoo Bumble Bee
Scientific Name Orussus unicolor Bombus bohemicus
Order Hymenoptera Hymenoptera
Family Orussidae Apidae
Size 8-12 mm 15-22 mm
Habitat Woodlands Underground
Diet Wood Feeders Pollen Feeders
Regions Southern Europe Europe, Northern Asia
Conservation Least Concern Least Concern

European Orussid Wood Wasp

A small, dark parasitoid wood wasp with a distinctly flattened head and stout build. It lays eggs into wood to parasitize wood-boring beetle larvae.

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Did You Know?

Orussids use vibrations transmitted through wood to locate hidden host larvae deep inside tree trunks, similar to echolocation.

Gypsy Cuckoo Bumble Bee

A social parasite that invades colonies of other bumble bees, killing the queen and enslaving the workers. Females lack pollen baskets since they never collect pollen themselves.

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Did You Know?

After killing the host queen, the cuckoo female forces the orphaned workers to raise her own offspring instead.