Hooked Stonefly vs Prostoia Forestfly

Side-by-side species comparison

Attribute Hooked Stonefly Prostoia Forestfly
Scientific Name Agnetina capitata Prostoia besametsa
Order Plecoptera Plecoptera
Family Perlidae Nemouridae
Size 20-30 mm 5-8 mm
Habitat Rivers & Streams Woodlands
Diet Predators Detritivores
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.

Prostoia Forestfly

A small spring stonefly of eastern North American woodland streams. Nymphs are detritivores among leaf packs in gentle currents.

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Did You Know?

The genus name Prostoia was coined to distinguish these North American species from the European Protonemura.