Small Brown Forestfly vs Springfly

Side-by-side species comparison

Attribute Small Brown Forestfly Springfly
Scientific Name Nemoura avicularis Isoperla signata
Order Plecoptera Plecoptera
Family Nemouridae Perlodidae
Size 5-8 mm 9-13 mm
Habitat Woodlands Rivers & Streams
Diet Detritivores Predators
Regions Europe Europe
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.

Springfly

A spring-emerging stonefly of fast-flowing European streams. Nymphs are active hunters that pursue prey among streambed gravels.

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Did You Know?

Males locate females by producing species-specific vibrations that travel through the substrate.