Atlas Moth

I found this impressive bug in Natureland Seal Sanctuary in Skegness.

The Atlas moth (Attacus atlas) is a large saturniid moth found in the tropical and subtropical forests of Southeast Asia, and common across the Malay archipelago.
Atlas moths are considered the largest moths in the world in terms of total wing surface area . Their wingspans are also amongst the largest, reaching over 25 cm (10 in). Females are appreciably larger and heavier.