Flat-headed Mayfly vs South African Prong-Gill Mayfly

Side-by-side species comparison

Attribute Flat-headed Mayfly South African Prong-Gill Mayfly
Scientific Name Epeorus assimilis Adenophlebia auriculata
Order Ephemeroptera Ephemeroptera
Family Heptageniidae Leptophlebiidae
Size 10-14 mm 8-12 mm
Habitat Rivers & Streams Mountains
Diet Herbivores Detritivores
Regions Europe Southern Africa
Conservation Least Concern Least Concern

Flat-headed Mayfly

A stream-dwelling mayfly nymph with a flattened body for clinging to rocks in rapids.

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Did You Know?

Its flattened nymph shape allows it to live in the boundary layer of fast currents.

South African Prong-Gill Mayfly

A mayfly endemic to southern African mountain streams. Nymphs have distinctive forked gills used for respiration in oxygen-rich rapids.

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Did You Know?

Its uniquely forked gills are found only in African leptophlebiid mayflies.