Hag Moth vs Japanese Luna Moth

Side-by-side species comparison

Attribute Hag Moth Japanese Luna Moth
Scientific Name Phobetron pithecium Actias gnoma
Order Lepidoptera Lepidoptera
Family Limacodidae Saturniidae
Size 20-28 mm wingspan 80-110 mm wingspan
Habitat Orchards Forests
Diet Wood Feeders Herbivores
Regions Eastern North America East Asia, Japan
Conservation Least Concern Least Concern

Hag Moth

A furry brown moth whose larva is called the monkey slug due to its bizarre shape with curly fleshy lateral projections. The caterpillar looks nothing like a typical lepidopteran larva.

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Did You Know?

The caterpillar's curly brown appendages are thought to mimic a shed tarantula skin to deter predators.

Japanese Luna Moth

A smaller Japanese moon moth known as 'o-mizuao-ga,' with elegant pale green wings and long tail streamers. Found in mountain forests of Japan, appearing in early summer.

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Did You Know?

The delicate trailing tails on the hindwings spin in flight, creating acoustic confusion that diverts echolocating bats away from the moth's vital body.