Large Alpine Stonefly vs Large Stonefly

Side-by-side species comparison

Attribute Large Alpine Stonefly Large Stonefly
Scientific Name Perla grandis Perla bipunctata
Order Plecoptera Plecoptera
Family Perlidae Perlidae
Size 20-33 mm body length 20-30 mm
Habitat Mountains Rivers & Streams
Diet Omnivores Predators
Regions Europe, Alps, Pyrenees Europe
Conservation Least Concern Near Threatened

Large Alpine Stonefly

One of the largest European stoneflies, found in clean mountain rivers. Its nymphs take several years to develop in cold water.

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Did You Know?

Nymphs may take up to four years to complete development in cold alpine waters.

Large Stonefly

One of the largest European stoneflies with a distinctive pair of pale spots on its head. Its predatory nymphs live among stones in fast-flowing rivers.

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Did You Know?

Large stonefly nymphs require three years to complete development, making them particularly vulnerable to long-term changes in water quality.