Oak silk moth
ヤママユガ Yamamayuga
Oak silk moth encyclopedia (New Leaf)
#10 #11 #11
Location Price
On trees 1,200 Bells
Size Available in rain
280 mm Yes
Time of year Time of day
June to September 7pm to 4am
Scientific name Antheraea yamamai
Family Saturniidae
Appearances WW, CF, NL
Rarity Scarce (★★★★)
Regional names Flag of France small Saturnide
Flag of France small Coscinocera hercules (NL)
Flag of Germany small Seidenspinner
Flag of Spain Polilla de seda
Flag of Italy small Macaone
"I caught an oak silk moth! Who's smooth now?" —New Leaf

The oak silk moth (ヤママユガ, Yamamayuga?) is a large moth found on trees during the summer nights. It can be caught in the rain as well as on clear evenings and at night. In New Leaf, it can also be found on the island's fruit trees during the same time of day as on the mainland. In City Folk, as well as New Leaf, it makes a distinct flapping sound when disturbed from a tree, which can be startling for players walking around unaware of its presence.

Donation to the museum

In Wild World

"...Ah! I just looked directly into that silkmoth's fabled eye-spots!...I'm unsure what predator would be fooled. Those look nothing like owl's eyes. Ah. Hm. There I go again. Letting my revulsion taint my scientific analysis... The eye-spots DO work, and are a vital evolutionary step! ...But blech."

In City Folk

Upon donating to the Museum, Blathers the curator will say;

"While the oak silk moth has impressively large wings, it's said that this moth isn't a very skilled flier. ...I should think that might be the reason it developed such big, vulgar eyeballs..."

The oak silk moth can be found on the second level of the bug exhibit, in the middle segment with the easternmost stump.

In New Leaf

In New Leaf an information board in the bug exhibit will list information about this bug.

"Oak silk moths are seen in the summer and are one of the largest moth species in the world. They make silk from their mouths as they transition into the pupa stage. As adults, they don't eat anything and only live off the nutrients they stored while they were caterpillars."

Capture quotes

"I caught a Japanese oak silk moth! It's pretty, but yuck...!" —Wild World
"I caught an oak silk moth! Who's smooth now?" —New Leaf
"I caught an oak silk moth! Pretty? Or pretty hideous?!" —City Folk

Encyclopedia information

Wild World

Encyclopedia Information
Oak silk moth (Wild World) "They are the world's largest moths. Like silkworms, they produce thread."
Size 280 mm
Time 7pm - 4am
Season Summer
Icon Oak silk moth (Wild World icon)

City Folk

Encyclopedia Information
Oak Silk Moth (City Folk)
"The larva and cocoons of these wild silkworms are a beautiful green color."
Size About 280 mm
Time Night
Season Summer

New Leaf

Encyclopedia Information
Oak silk moth encyclopedia (New Leaf)
"I caught an oak silk moth! Who's smooth now?"
Size 337 mm
Time Night
Season Summer


Further information


A female Hercules Moth.

The oak silk moth appears to be a female Hercules Moth, which is one of the largest moths in the world. Its Japanese name is a general term for members of the Saturniidae family (of which the Hercules Moth is one).

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