Japanese Giant Silkmoth vs Lake Stonefly

Side-by-side species comparison

Attribute Japanese Giant Silkmoth Lake Stonefly
Scientific Name Saturnia japonica Megaleuctra complicata
Order Lepidoptera Plecoptera
Family Saturniidae Leuctridae
Size 85-120 mm wingspan 8-14 mm
Habitat Mountains Mountains
Diet Omnivores Detritivores
Regions Japan North America
Conservation Least Concern Near Threatened

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.

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Did You Know?

It is considered a harbinger of spring in rural Japan, where it is called 'kusu-san'.

Lake Stonefly

A rare stonefly found in cold mountain lake outlets and spring-fed streams.

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Did You Know?

Its restricted cold-water habitat makes it vulnerable to climate warming.