Green Stonefly vs Chilean Giant Stonefly

Side-by-side species comparison

Attribute Green Stonefly Chilean Giant Stonefly
Scientific Name Alloperla caudata Diamphipnoa helicoides
Order Plecoptera Plecoptera
Family Chloroperlidae Diamphipnoidae
Size 8-12 mm 25-40 mm
Habitat Mountains Mountains
Diet Detritivores Detritivores
Regions North America South America (Chile)
Conservation Least Concern Data Deficient

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.

Chilean Giant Stonefly

An ancient, large stonefly endemic to Chilean mountain streams. It belongs to a relict family with Gondwanan origins.

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Did You Know?

Its family is considered a living fossil with only two known species, both restricted to Chile.