Spring Stonefly vs Southern Salmonfly

Side-by-side species comparison

Attribute Spring Stonefly Southern Salmonfly
Scientific Name Amphinemura sulcicollis Neoperla clymene
Order Plecoptera Plecoptera
Family Nemouridae Perlidae
Size 6-9 mm 12-18 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Predators
Regions Europe North America
Conservation Least Concern Least Concern

Spring Stonefly

A small dark stonefly that emerges in early spring in European streams. Nymphs are shredders of decomposing leaf litter in headwaters.

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Did You Know?

Adults are among the first insects to appear each spring, sometimes emerging while snow still covers the banks.

Southern Salmonfly

A medium-sized stonefly of warm southeastern streams with nocturnal adults. Nymphs are active predators in gravel substrates.

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Did You Know?

Adults are strongly attracted to lights and are often collected far from water at night.