Swallowtail Butterfly vs Long-tailed Blue

Side-by-side species comparison

Attribute Swallowtail Butterfly Long-tailed Blue
Scientific Name Papilio machaon Lampides boeticus
Order Lepidoptera Lepidoptera
Family Papilionidae Lycaenidae
Size 65-86 mm wingspan 24-34 mm wingspan
Habitat Underground Underground
Diet Predators Seed Feeders
Regions Europe, Asia, North America Europe, Africa, Asia, Australia
Conservation Least Concern Least Concern

Swallowtail Butterfly

Elegant butterfly with yellow wings marked with black veins and blue-red eyespots on hindwings. The tail extensions on hindwings divert predator attacks from the body.

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Did You Know?

Swallowtail caterpillars have a hidden orange forked organ called an osmeterium that they pop out from behind their head when threatened, releasing a foul smell.

Long-tailed Blue

A small pale violet-blue butterfly with thin hairlike tails on the hindwings and prominent false eyespots near them. It is one of the most widespread butterflies in the world.

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Did You Know?

The false head pattern on the hindwing tails tricks predators into attacking the wrong end of the butterfly.