Tasmanian Giant Stonefly vs Yellow Sally

Side-by-side species comparison

Attribute Tasmanian Giant Stonefly Yellow Sally
Scientific Name Eusthenia spectabilis Isoperla fulva
Order Plecoptera Plecoptera
Family Eustheniidae Perlodidae
Size 30-50 mm 8-12 mm
Habitat Mountains Rivers & Streams
Diet Predators Omnivores
Regions Australia (Tasmania) Europe
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.

Yellow Sally

A bright yellow stonefly common in European upland streams. Nymphs are omnivorous, feeding on both algae and small invertebrates.

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Did You Know?

The vivid yellow color serves no known warning function and fades quickly in preserved specimens.