Atlas Moth vs Brown Argus

Side-by-side species comparison

Attribute Atlas Moth Brown Argus
Scientific Name Attacus atlas Aricia agestis
Order Lepidoptera Lepidoptera
Family Saturniidae Lycaenidae
Size 250-300 mm wingspan 25-31 mm wingspan
Habitat Forests Beaches & Coastal
Diet Herbivores Nectar Feeders
Regions Asia Europe, western Asia, North Africa
Conservation Least Concern Least Concern

Atlas Moth

One of the largest moths in the world by wing area. Adults have no mouths and do not eat, living only 1-2 weeks on stored fat. Wing tips mimic snake heads.

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Did You Know?

The atlas moth has no mouth — as an adult, it cannot eat. It survives entirely on fat stored during its caterpillar stage, living just long enough to mate.

Brown Argus

A small chocolate-brown butterfly with a row of bright orange crescent-shaped spots around the wing margins. Despite its brown color, it belongs to the blue butterfly subfamily.

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Did You Know?

It has expanded its range northward in Britain in recent decades, likely in response to climate warming.