Western Iron Dun vs Iron Blue Dun
Side-by-side species comparison
| Attribute | Western Iron Dun | Iron Blue Dun |
|---|---|---|
| Scientific Name | Epeorus longimanus | Baetis muticus |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Baetidae |
| Size | 10-14 mm | 5-7 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Western Iron Dun
An iconic eastern mayfly that signals the start of spring fly-fishing season. Nymphs have only two tails and cling to rocks in fast current.
Did You Know?
It was named after Theodore Gordon, considered the father of American dry-fly fishing.
Iron Blue Dun
A small dark mayfly that hatches prolifically on cool overcast days. Nymphs are found clinging to stones in moderate to fast current.
Did You Know?
Hatches are most prolific during rain and cold snaps, making it a favorite species for wet-weather anglers.