Mountain Flathead Mayfly vs Blue-winged Olive Mayfly
Side-by-side species comparison
| Attribute | Mountain Flathead Mayfly | Blue-winged Olive Mayfly |
|---|---|---|
| Scientific Name | Cinygmula ramaleyi | Serratella ignita |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Ephemerellidae |
| Size | 7-10 mm | 7-10 mm body |
| Habitat | Mountains | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | Europe |
| 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.
Blue-winged Olive Mayfly
A common mayfly of clean rivers and streams with distinctive blue-grey wings. One of the most important mayflies for fly fishing. Nymphs cling to stones in fast water.
Did You Know?
So important to fly fishers that dozens of artificial fly patterns have been designed to imitate its various life stages.