to Wikipedia “Atlas moths are considered the largest moths in the world
in terms of total wing surface area [upwards of c. 400 cm2
(62 sq in)]. Their wingspans are also amongst the largest, from 25–30 cm
(10–12 in). Females are appreciably larger and heavier.” They are found
in the tropical and subtropical forests of Southeast Asia. This photo
was taken in Penang Butterfly Farm in Malaysia.