Unequal Cellophane Bee vs Bee Fly

Side-by-side species comparison

Attribute Unequal Cellophane Bee Bee Fly
Scientific Name Colletes inaequalis Bombylius major
Order Hymenoptera Diptera
Family Colletidae Bombyliidae
Size 10-13 mm 8-18 mm
Habitat Deserts & Drylands Underground
Diet Nectar Feeders Nectar Feeders
Regions North America Europe, North America, Asia
Conservation Least Concern Least Concern

Unequal Cellophane Bee

An early spring bee that forms large nesting aggregations in sandy soil. It lines its cells with a waterproof secretion resembling cellophane.

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Did You Know?

Nesting aggregations can alarm homeowners as thousands of bees emerge from lawns, but they are docile and rarely sting.

Bee Fly

A fuzzy bee mimic with a long fixed proboscis used for hovering in front of flowers to drink nectar. Despite its innocent appearance, larvae are parasites of solitary bee nests.

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Did You Know?

Bee flies are aerial bombers — females flick their eggs into the entrance holes of ground-nesting bee burrows while hovering, never landing.