Fatal Metalmark vs Japanese Giant Silkmoth
Side-by-side species comparison
| Attribute | Fatal Metalmark | Japanese Giant Silkmoth |
|---|---|---|
| Scientific Name | Calephelis nemesis | Saturnia japonica |
| Order | Lepidoptera | Lepidoptera |
| Family | Riodinidae | Saturniidae |
| Size | 18-25 mm wingspan | 85-120 mm wingspan |
| Habitat | Rivers & Streams | Mountains |
| Diet | Nectar Feeders | Omnivores |
| Regions | Southwestern United States, Mexico | Japan |
| Conservation | Least Concern | Least Concern |
Fatal Metalmark
A tiny dark brown butterfly with fine metallic silver lines across the wings and minute checkered fringes. Despite its ominous name, it is a harmless nectar feeder.
Did You Know?
The name 'nemesis' refers to the Greek goddess of retribution, though the reason for this dramatic name is unclear.
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'.