Yellow Drake Mayfly vs Mahogany Dun
Side-by-side species comparison
| Attribute | Yellow Drake Mayfly | Mahogany Dun |
|---|---|---|
| Scientific Name | Ephemera lutea | Isonychia harperi |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemeridae | Isonychiidae |
| Size | 18-25 mm | 13-17 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Yellow Drake Mayfly
One of the largest mayflies in eastern North America with a pale greenish body. Nymphs live in burrows in the silty bottoms of clean streams.
Did You Know?
Adults live only a few hours but their emergence creates one of the most anticipated fishing events of the year.
Mahogany Dun
A large reddish-brown mayfly with impressive filter-feeding forelegs. Nymphs prefer moderate to fast riffles with clean gravel substrates.
Did You Know?
Adults hold their forelegs forward in flight, making them easy to identify on the wing.