Large Dark Olive Mayfly vs Iron Blue Dun
Side-by-side species comparison
| Attribute | Large Dark Olive Mayfly | Iron Blue Dun |
|---|---|---|
| Scientific Name | Baetis rhodani | Baetis muticus |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Baetidae | Baetidae |
| Size | 6-10 mm | 5-7 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Europe | Europe |
| Conservation | Least Concern | Least Concern |
Large Dark Olive Mayfly
The most common European mayfly, emerging year-round in many rivers. It is a small olive-brown species that serves as a staple food for stream fish.
Did You Know?
This mayfly can produce up to three generations per year, making it available as fish food in every season.
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.