Small Brown Forestfly vs Alpine Stonefly

Side-by-side species comparison

Attribute Small Brown Forestfly Alpine Stonefly
Scientific Name Nemoura avicularis Dictyogenus alpinum
Order Plecoptera Plecoptera
Family Nemouridae Perlodidae
Size 5-8 mm 15-25 mm body length
Habitat Woodlands Mountains
Diet Detritivores Predators
Regions Europe Alps, Central European mountains
Conservation Least Concern Least Concern

Small Brown Forestfly

A small brown stonefly of European woodland streams that emerges in spring. Nymphs are detritivores feeding on submerged leaf litter.

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Did You Know?

Adults fold their wings flat over the body like a fan, unlike most stoneflies that fold wings along the sides.

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.