Tasmanian Giant Stonefly vs Hooked Stonefly

Side-by-side species comparison

Attribute Tasmanian Giant Stonefly Hooked Stonefly
Scientific Name Eusthenia spectabilis Agnetina capitata
Order Plecoptera Plecoptera
Family Eustheniidae Perlidae
Size 30-50 mm 20-30 mm
Habitat Mountains Rivers & Streams
Diet Predators Predators
Regions Australia (Tasmania) Eastern North America
Conservation Least Concern Least Concern

Tasmanian Giant Stonefly

A spectacular large stonefly endemic to Tasmanian mountain streams with bold orange and black markings. Nymphs are among the largest aquatic insect larvae in Australia.

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Did You Know?

It belongs to an ancient Gondwanan family found only in Australia and South America.

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.