Japanese Giant Silkmoth vs Frigga Fritillary
Side-by-side species comparison
| Attribute | Japanese Giant Silkmoth | Frigga Fritillary |
|---|---|---|
| Scientific Name | Saturnia japonica | Boloria frigga |
| Order | Lepidoptera | Lepidoptera |
| Family | Saturniidae | Nymphalidae |
| Size | 85-120 mm wingspan | 34-42 mm wingspan |
| Habitat | Mountains | Tundra & Arctic |
| Diet | Omnivores | Nectar Feeders |
| Regions | Japan | Alaska, northern Canada, Scandinavia, Finland, Siberia |
| Conservation | Least Concern | Least Concern |
Japanese Giant Silkmoth
A large reddish-brown moth with prominent eyespots on all four wings. It is endemic to Japan and closely related to the European Emperor Moth.
Did You Know?
It is considered a harbinger of spring in rural Japan, where it is called 'kusu-san'.
Frigga Fritillary
A medium-sized fritillary with tawny-orange wings and a bold pattern of dark lines. The hindwing underside has a distinctive purplish sheen with white median band. It flies slowly over boggy tundra terrain.
Did You Know?
Named after Frigga, wife of the Norse god Odin, this butterfly prefers the wettest, boggiest parts of the tundra.