Attacus atlas

The atlas moth is a very large moth. Both sources describe it as one of the biggest moths, with broad wings that look wide open even at rest. Each forewing ends in a curved, colorful tip that some people think looks like a snake's head. The adults have no working mouthparts: the feeding tube that most butterflies and moths use is tiny or never forms. You can tell males from females by their antennae. A male's antennae are feathery and comb-like, and the extra surface helps him pick up the scent signals females give off.

• Spotlight: the atlas moth | Natural History Museum nhm.ac.uk, accessed 20 October 2026
• Creature Corner: Atlas Moths at the McGuire Center – McGuire Center ufl.edu, accessed 20 October 2026

The sources put this moth's native home in Asia. One describes it as native to the forests of Southeast Asia. The other names China, India, Malaysia and Indonesia as places where it naturally occurs.

• Spotlight: the atlas moth | Natural History Museum nhm.ac.uk, accessed 20 October 2026
• Creature Corner: Atlas Moths at the McGuire Center – McGuire Center ufl.edu, accessed 20 October 2026

Adult atlas moths cannot eat, so they live only a short time on energy stored up while they were caterpillars. They spend the day sitting very still, which saves energy and helps them blend in so birds don't notice them. After dark they turn to finding a mate: females release a scent that males follow. If a resting moth is disturbed, it may drop to the ground and slowly move its wings. Some people think this, together with the snake-head-like wing tips, helps scare off predators, though one source notes this idea has not been tested.

• Spotlight: the atlas moth | Natural History Museum nhm.ac.uk, accessed 20 October 2026
• Creature Corner: Atlas Moths at the McGuire Center – McGuire Center ufl.edu, accessed 20 October 2026

Like other moths, the atlas moth goes through egg, caterpillar, pupa and adult stages. The caterpillar stage is about eating and growing, because the caterpillar must build up enough energy to last the rest of its life. When it is fully grown, it spins a tough cocoon of brown silk and becomes a pupa inside. The adult that comes out has no working mouthparts and lives only a short time, using up its stored energy as it looks for a mate. In parts of Asia, people make a coarse silk from the empty cocoons after the moths have left.

• Spotlight: the atlas moth | Natural History Museum nhm.ac.uk, accessed 20 October 2026
• Creature Corner: Atlas Moths at the McGuire Center – McGuire Center ufl.edu, accessed 20 October 2026