Yellow Sally vs Southern Stonefly

Side-by-side species comparison

Attribute Yellow Sally Southern Stonefly
Scientific Name Isoperla fulva Aphanicerca capensis
Order Plecoptera Plecoptera
Family Perlodidae Notonemouridae
Size 8-12 mm 6-10 mm
Habitat Rivers & Streams Mountains
Diet Omnivores Detritivores
Regions Europe Southern Africa
Conservation Least Concern Least Concern

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.

Southern Stonefly

A small brown stonefly endemic to mountain streams of the Western Cape, South Africa. It belongs to a Southern Hemisphere family with Gondwanan origins.

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Did You Know?

Its family Notonemouridae is found only in the Southern Hemisphere, a legacy of the breakup of Gondwana.