Iron Blue Dun vs Freija Fritillary
Side-by-side species comparison
| Attribute | Iron Blue Dun | Freija Fritillary |
|---|---|---|
| Scientific Name | Baetis muticus | Boloria freija |
| Order | Ephemeroptera | Lepidoptera |
| Family | Baetidae | Nymphalidae |
| Size | 5-7 mm | 30-40 mm wingspan |
| Habitat | Rivers & Streams | Tundra & Arctic |
| Diet | Omnivores | Omnivores |
| Regions | Europe | Alaska, northern Canada, Scandinavia, Finland, northern Russia, Siberia |
| Conservation | Least Concern | Least Concern |
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.
Freija Fritillary
A medium-small fritillary with bright orange wings bearing black zigzag markings. The hindwing underside features a distinctive arrowhead pattern in white and brown. It has a rapid, low flight over tundra bogs.
Did You Know?
Named after the Norse goddess Freya, this butterfly is among the first to fly each spring in the boreal north.