Western Glacier Stonefly vs Long-armed Chafer

Side-by-side species comparison

Attribute Western Glacier Stonefly Long-armed Chafer
Scientific Name Zapada glacier Cheirotonus gestroi
Order Plecoptera Coleoptera
Family Nemouridae Scarabaeidae
Size 5-8 mm body length 50-85mm
Habitat Mountains Mountains
Diet Omnivores Wood Feeders
Regions Glacier National Park, Montana Asia
Conservation Endangered Vulnerable

Western Glacier Stonefly

A cold-specialist stonefly found only in glacier-fed streams in Glacier National Park. It is threatened by the retreat of mountain glaciers.

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Did You Know?

It may become one of the first insects driven to extinction by climate change as glaciers disappear.

Long-armed Chafer

A large reddish-brown beetle with spectacularly elongated front legs in males. The legs can be longer than the entire body.

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Did You Know?

Males use their enormously long forelegs to grapple with rivals and to cling onto females during mating.