Hooked Stonefly vs Southern Salmonfly

Side-by-side species comparison

Attribute Hooked Stonefly Southern Salmonfly
Scientific Name Agnetina capitata Neoperla clymene
Order Plecoptera Plecoptera
Family Perlidae Perlidae
Size 20-30 mm 12-18 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Predators
Regions Eastern North America North America
Conservation Least Concern Least Concern

Hooked Stonefly

A large, patterned stonefly of eastern North American rivers with distinctive hooked anal gills. Nymphs are active nocturnal predators under cobbles.

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Did You Know?

Its nymphs are nocturnal, hiding under rocks by day and actively hunting at night.

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.