Olive Drake Mayfly vs Autumn Dun
Side-by-side species comparison
| Attribute | Olive Drake Mayfly | Autumn Dun |
|---|---|---|
| Scientific Name | Ephemera lineata | Leptophlebia marginata |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemeridae | Leptophlebiidae |
| Size | 15-22 mm | 10-14 mm |
| Habitat | Rivers & Streams | Woodlands |
| Diet | Detritivores | Detritivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Olive Drake Mayfly
A large burrowing mayfly with distinctive mottled brown wings. Nymphs excavate U-shaped burrows in sandy stream bottoms.
Did You Know?
Mass emergences at dusk can be so dense they appear on weather radar.
Autumn Dun
A dark-winged mayfly that emerges in spring despite its common name. Nymphs inhabit slow-flowing sections of woodland streams among leaf litter.
Did You Know?
Its common name refers to the brownish autumnal color of the adult, not its emergence season.