"The Atlas Moth has the largest wing surface area of all moths (but not the longest wings)
World distribution: Asia and Southeast Asia.

Classification: Family Saturniidae (Silkworm Moths). This family has the largest moths with showiest wings.
It is so named because its wing patterns resemble maps. The Atlas Moth's wings have triangular
transparent "windows" whose purpose we don't know. The wing tips are hooked and some say resemble a
snake's head complete with eye, to scare off predators."
Reference: http://www.naturia.per.sg/buloh/inverts/atlas_moth.htm