Long-Tailed Mayfly vs Australian Giant Mayfly

Side-by-side species comparison

Attribute Long-Tailed Mayfly Australian Giant Mayfly
Scientific Name Palingenia longicauda Atalophlebia australis
Order Ephemeroptera Ephemeroptera
Family Palingeniidae Leptophlebiidae
Size 30-40 mm body; 60-80 mm cerci 12-18 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Herbivores
Regions Europe Australia
Conservation Vulnerable Least Concern

Long-Tailed Mayfly

The largest European mayfly with body and cerci reaching over 120 mm. Its spectacular mass hatches on the Tisza River are a famous natural phenomenon.

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Did You Know?

The annual "Tisza bloom" of this mayfly along the Tisza River lasts only a few hours but has been celebrated in Hungarian culture for generations.

Australian Giant Mayfly

One of the largest Australian mayflies, found in clean streams of southeastern Australia. Nymphs have feathery gills along their abdomens.

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Did You Know?

It belongs to the most species-rich mayfly family in the Southern Hemisphere.