Banded Demoiselle vs Long-Tailed Mayfly

Side-by-side species comparison

Attribute Banded Demoiselle Long-Tailed Mayfly
Scientific Name Calopteryx splendens Palingenia longicauda
Order Odonata Ephemeroptera
Family Calopterygidae Palingeniidae
Size 45-48 mm wingspan 30-40 mm body; 60-80 mm cerci
Habitat Rivers & Streams Rivers & Streams
Diet Predators Omnivores
Regions Europe, Asia Europe
Conservation Least Concern Vulnerable

Banded Demoiselle

A striking damselfly with metallic blue-green body and distinctive dark wing patches in males. It frequents slow-flowing rivers and streams across Europe.

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Did You Know?

Males perform an elaborate fluttering courtship display flight, hovering in front of females to show off their iridescent wing patches.

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.