Yellow Sally vs Alpine Stonefly

Side-by-side species comparison

Attribute Yellow Sally Alpine Stonefly
Scientific Name Isoperla fulva Dictyogenus alpinum
Order Plecoptera Plecoptera
Family Perlodidae Perlodidae
Size 8-12 mm 15-25 mm body length
Habitat Rivers & Streams Mountains
Diet Omnivores Predators
Regions Europe Alps, Central European mountains
Conservation Least Concern Least Concern

Yellow Sally

A bright yellow stonefly common in European upland streams. Nymphs are omnivorous, feeding on both algae and small invertebrates.

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Did You Know?

The vivid yellow color serves no known warning function and fades quickly in preserved specimens.

Alpine Stonefly

A large, dark stonefly of cold alpine streams and rivers. Its nymphs are voracious predators of other aquatic invertebrates.

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Did You Know?

Adults have reduced mouthparts and do not feed during their short lifespan.