Broad-faced Sweat Bee vs Variable Cuckoo Bumble Bee

Side-by-side species comparison

Attribute Broad-faced Sweat Bee Variable Cuckoo Bumble Bee
Scientific Name Lasioglossum platycephalum Bombus variabilis
Order Hymenoptera Hymenoptera
Family Halictidae Apidae
Size 7-9 mm 15-22 mm
Habitat Rivers & Streams Grasslands
Diet Nectar Feeders Parasites
Regions Europe Central and Eastern North America
Conservation Near Threatened Critically Endangered

Broad-faced Sweat Bee

A rare and distinctive European furrow bee with an unusually broad, flattened head. It nests in sandy or gravelly soils and has become scarce throughout much of its range.

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Did You Know?

Its flattened head shape is thought to be an adaptation for more efficiently excavating nest tunnels in compacted sandy soil.

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.

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Did You Know?

It produces no workers of its own and depends entirely on the labor of its host species to raise its offspring.