Crotch's Bumblebee vs Fatal Metalmark

Side-by-side species comparison

Attribute Crotch's Bumblebee Fatal Metalmark
Scientific Name Bombus crotchii Calephelis nemesis
Order Hymenoptera Lepidoptera
Family Apidae Riodinidae
Size 10-16 mm 18-25 mm wingspan
Habitat Heathland Rivers & Streams
Diet Nectar Feeders Nectar Feeders
Regions California, western USA Southwestern United States, Mexico
Conservation Endangered Least Concern

Crotch's Bumblebee

A western North American bumblebee that has declined by over 90% from its historical range. Once common in California's Central Valley. Threatened by pesticides and habitat loss.

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Did You Know?

Has vanished from most of California's agricultural Central Valley where it was once the dominant bumblebee.

Fatal Metalmark

A tiny dark brown butterfly with fine metallic silver lines across the wings and minute checkered fringes. Despite its ominous name, it is a harmless nectar feeder.

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Did You Know?

The name 'nemesis' refers to the Greek goddess of retribution, though the reason for this dramatic name is unclear.