Blue Morpho vs Four-barred Swordtail

Side-by-side species comparison

Attribute Blue Morpho Four-barred Swordtail
Scientific Name Morpho menelaus Protographium leosthenes
Order Lepidoptera Lepidoptera
Family Nymphalidae Papilionidae
Size 120-150 mm wingspan 6-7 cm wingspan
Habitat Forests Forests
Diet Fungus Feeders Nectar Feeders
Regions Central America, South America Australia, Papua New Guinea
Conservation Least Concern Least Concern

Blue Morpho

Renowned for its brilliant iridescent blue wings. The color is not from pigment but from microscopic scales that reflect light. Underwings are brown with eyespots.

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Did You Know?

The blue morphos wings are not actually blue — their color comes from millions of nanoscale ridges that manipulate light through constructive interference.

Four-barred Swordtail

A distinctive swallowtail with translucent wings crossed by four dark bars and a long sword-like tail. It has a rapid, darting flight pattern.

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Did You Know?

Its nearly transparent wings make it extremely difficult to spot in dappled rainforest light.