Tasmanian Giant Stonefly vs Mountain Stonefly

Side-by-side species comparison

Attribute Tasmanian Giant Stonefly Mountain Stonefly
Scientific Name Eusthenia spectabilis Protonemura montana
Order Plecoptera Plecoptera
Family Eustheniidae Nemouridae
Size 30-50 mm 6-10 mm body length
Habitat Mountains Mountains
Diet Predators Herbivores
Regions Australia (Tasmania) Europe, Alps, British mountains
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.

Mountain Stonefly

A small brown stonefly common along mountain brooks and streams. Nymphs feed on fallen leaves in cold, well-oxygenated water.

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Did You Know?

Its presence is an indicator of excellent water quality in mountain streams.