Flat-headed Mayfly vs New Zealand Mayfly
Side-by-side species comparison
| Attribute | Flat-headed Mayfly | New Zealand Mayfly |
|---|---|---|
| Scientific Name | Epeorus assimilis | Deleatidium lillii |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Leptophlebiidae |
| Size | 10-14 mm | 7-11 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Herbivores | Detritivores |
| Regions | Europe | New Zealand |
| Conservation | Least Concern | Least Concern |
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.
New Zealand Mayfly
The most abundant and widespread mayfly genus in New Zealand. Nymphs dominate the invertebrate fauna of stony streams throughout both islands.
Did You Know?
It is the most commonly used bioindicator insect for water quality testing in New Zealand.