New Zealand Mayfly vs White Miller Mayfly
Side-by-side species comparison
| Attribute | New Zealand Mayfly | White Miller Mayfly |
|---|---|---|
| Scientific Name | Deleatidium lillii | Ephoron virgo |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Leptophlebiidae | Polymitarcyidae |
| Size | 7-11 mm | 12-18 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | New Zealand | Europe, Western Asia |
| Conservation | Least Concern | Least Concern |
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.
White Miller Mayfly
A white-bodied European mayfly that emerges in enormous synchronized swarms at dusk. Females are unique among mayflies in that they moult directly into the spinner stage.
Did You Know?
Swarms at bridges and streetlights can be so thick they cause traffic hazards.