Green Drake Mayfly vs Pale Evening Dun
Side-by-side species comparison
| Attribute | Green Drake Mayfly | Pale Evening Dun |
|---|---|---|
| Scientific Name | Ephemera guttulata | Heptagenia adaequata |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemeridae | Heptageniidae |
| Size | 18-25 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Eastern North America | Europe |
| Conservation | Least Concern | Least Concern |
Green Drake Mayfly
A large and strikingly beautiful mayfly with mottled wings that emerges in late spring. Its hatches on eastern North American streams create some of the year's best fly-fishing opportunities.
Did You Know?
Green drake hatches trigger a feeding frenzy among trout, with even the largest fish rising to the surface.
Pale Evening Dun
A flat-bodied mayfly whose nymphs press tightly against rocks in swift currents. Adults emerge at dusk during summer months.
Did You Know?
Its extremely flattened body allows it to resist currents that would sweep away most other insects.