Japanese Giant Silkmoth vs Great Helen
Side-by-side species comparison
| Attribute | Japanese Giant Silkmoth | Great Helen |
|---|---|---|
| Scientific Name | Saturnia japonica | Papilio iswara |
| Order | Lepidoptera | Lepidoptera |
| Family | Saturniidae | Papilionidae |
| Size | 85-120 mm wingspan | 120-150 mm wingspan |
| Habitat | Mountains | Rivers & Streams |
| Diet | Omnivores | Nectar Feeders |
| Regions | Japan | Southeast Asia (Malaysia, Borneo, Sumatra, Thailand, Myanmar) |
| 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'.
Great Helen
A large, elegant swallowtail with dark velvety black wings bearing a broad white band across the hindwings and blue submarginal spots. The hindwings have distinctive spatulate tails.
Did You Know?
Males are often seen mud-puddling in large groups along forest streams, sometimes alongside dozens of other swallowtail species.