Mountain Flathead Mayfly vs New Zealand Mayfly
Side-by-side species comparison
| Attribute | Mountain Flathead Mayfly | New Zealand Mayfly |
|---|---|---|
| Scientific Name | Cinygmula ramaleyi | Deleatidium lillii |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Leptophlebiidae |
| Size | 7-10 mm | 7-11 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Omnivores | Detritivores |
| Regions | North America | New Zealand |
| Conservation | Least Concern | Least Concern |
Mountain Flathead Mayfly
An alpine mayfly restricted to high-elevation cold streams in the Rocky Mountains. Nymphs feed on diatom films on boulder surfaces.
Did You Know?
This species cannot survive in water temperatures above 15 degrees Celsius.
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.