Claassenia Stonefly vs Green Stonefly

Side-by-side species comparison

Attribute Claassenia Stonefly Green Stonefly
Scientific Name Claassenia sabulosa Alloperla caudata
Order Plecoptera Plecoptera
Family Perlidae Chloroperlidae
Size 25-40 mm 8-12 mm
Habitat Rivers & Streams Mountains
Diet Predators Detritivores
Regions Western North America North America
Conservation Least Concern Least Concern

Claassenia Stonefly

A large predatory stonefly with a mottled yellow and brown pattern. The nymphs are active nocturnal hunters that roam the stream bed seeking prey.

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Did You Know?

Nymphs often crawl out of the water at night to hunt, making them vulnerable to bats and spiders.

Green Stonefly

A small bright green stonefly found along clean mountain streams in North America. Despite its small size, it is an important indicator of excellent water quality.

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Did You Know?

The presence of green stoneflies in a stream is considered strong evidence of pristine water quality by aquatic biologists.