Appalachian Springfly vs Small Brown Stonefly

Side-by-side species comparison

Attribute Appalachian Springfly Small Brown Stonefly
Scientific Name Remenus bilobatus Nemoura cinerea
Order Plecoptera Plecoptera
Family Perlodidae Nemouridae
Size 8-12 mm 6-10 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Predators Herbivores
Regions North America Europe, Asia
Conservation Vulnerable Least Concern

Appalachian Springfly

A rare springfly restricted to a few clean Appalachian headwater streams. Nymphs are predatory on small invertebrates among gravel substrates.

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Did You Know?

Its extremely limited range makes it one of the rarest stonefly species in North America.

Small Brown Stonefly

A very common small brown stonefly found in a wide range of freshwater habitats across Europe. It is one of the most tolerant stoneflies to mild pollution.

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Did You Know?

Unlike most stonefly species that require pristine water, this species can tolerate mildly enriched conditions, making it one of the last stoneflies found in degraded streams.