Clouded Yellow vs South American Swallowtail

Side-by-side species comparison

Attribute Clouded Yellow South American Swallowtail
Scientific Name Colias croceus Heraclides thoas
Order Lepidoptera Lepidoptera
Family Pieridae Papilionidae
Size Wingspan 46-54mm 100-130 mm wingspan
Habitat Farmland Orchards
Diet Herbivores Nectar Feeders
Regions Europe, Africa, Asia Brazil, Argentina, Central America, southern United States
Conservation Least Concern Least Concern

Clouded Yellow

A fast-flying bright orange-yellow butterfly with black wing borders. A pale female form called helice has greenish-white wings instead of orange.

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Did You Know?

It migrates north from the Mediterranean each year but the return generation flies south at such high altitude it is rarely observed.

South American Swallowtail

A large swallowtail butterfly with black wings bearing bright yellow band patterns and prominent tail extensions. It is a strong, rapid flier.

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Did You Know?

When threatened, its caterpillar extends a bright orange forked organ called an osmeterium that releases a foul smell.