The Atlas moth [Attacus atlas] is a large saturniid moth found in the tropical and subtropical forests of Southeast Asia. Atlas moths are considered the largest moths in the world with wingspan reaching over 25 cm [10 in]. Females are appreciably larger and heavier.
Atlas moths are said to be named after either the Titan of Greek mythology, or their map-like wing patterns. Atlas moths are predominantly tawny to maroon in color with roughly triangular, diaphanous [transparent] “eyes” on both forewing and hindwing, bordered in black.
Male [left] Atlas moths are distinguished from females by their smaller size.
Photo: Penang Butterfly Farm, 20010601