Pale Morning Dun vs Long-Tailed Mayfly
Side-by-side species comparison
| Attribute | Pale Morning Dun | Long-Tailed Mayfly |
|---|---|---|
| Scientific Name | Ephemerella excrucians | Palingenia longicauda |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemerellidae | Palingeniidae |
| Size | 7-10 mm | 30-40 mm body; 60-80 mm cerci |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Vulnerable |
Pale Morning Dun
A small pale yellowish mayfly that hatches in large numbers on western North American streams during late spring. It is a crucial food source for trout.
Did You Know?
Pale morning duns often hatch in such dense swarms that trout become highly selective, ignoring all but perfect imitations.
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.
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.