Arctic Woolly Bear Moth vs Pale Evening Dun
Side-by-side species comparison
| Attribute | Arctic Woolly Bear Moth | Pale Evening Dun |
|---|---|---|
| Scientific Name | Gynaephora groenlandica | Heptagenia adaequata |
| Order | Lepidoptera | Ephemeroptera |
| Family | Erebidae | Heptageniidae |
| Size | 30-40 mm wingspan | 8-12 mm |
| Habitat | Heathland | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Canadian Arctic Archipelago, Greenland, Ellesmere Island | Europe |
| Conservation | Least Concern | Least Concern |
Arctic Woolly Bear Moth
A medium-sized moth whose caterpillar is famous for its extremely long development. Adults are gray-brown with hairy bodies. The densely hairy caterpillar is dark brown to black and curls into a tight ball when disturbed.
Did You Know?
The caterpillar can take up to 14 years to complete development, spending most of each year frozen solid and thawing for only a few weeks of feeding each summer.
Pale Evening Dun
A flat-bodied mayfly whose nymphs press tightly against rocks in swift currents. Adults emerge at dusk during summer months.
Did You Know?
Its extremely flattened body allows it to resist currents that would sweep away most other insects.