noun
atlas moth
Refers to the species Attacus atlas, a large moth found in Asia including Yonaguni Island.
ヨナグニサンは世界最大級の蛾の一種です。
The atlas moth is one of the largest moths in the world.
Named after Yonaguni Island (与那国島) where it is found, combined with 蚕 (さん, 'silkworm moth'), though it is not a true silkworm.