Japanese Burrowing Mayfly vs Flat-headed Mayfly
Side-by-side species comparison
| Attribute | Japanese Burrowing Mayfly | Flat-headed Mayfly |
|---|---|---|
| Scientific Name | Ephemera japonica | Epeorus assimilis |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemeridae | Heptageniidae |
| Size | 15-25 mm | 10-14 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Herbivores |
| Regions | Japan, East Asia | Europe |
| Conservation | Least Concern | Least Concern |
Japanese Burrowing Mayfly
A large burrowing mayfly native to Japanese rivers and streams. It emerges in large numbers during early summer evenings.
Did You Know?
It is culturally significant in Japan, where mayfly emergence has been celebrated in poetry for centuries.
Flat-headed Mayfly
A stream-dwelling mayfly nymph with a flattened body for clinging to rocks in rapids.
Did You Know?
Its flattened nymph shape allows it to live in the boundary layer of fast currents.