Giant Swallowtail vs Japanese Spicebush Swallowtail

Side-by-side species comparison

Attribute Giant Swallowtail Japanese Spicebush Swallowtail
Scientific Name Papilio cresphontes Papilio protenor
Order Lepidoptera Lepidoptera
Family Papilionidae Papilionidae
Size 100-160 mm wingspan 80-120 mm wingspan
Habitat Woodlands Gardens
Diet Nectar Feeders Nectar Feeders
Regions North America, Central America East Asia, Japan/Korea
Conservation Least Concern Least Concern

Giant Swallowtail

The largest butterfly in North America with dark brown wings crossed by yellow bands. Larvae resemble bird droppings for camouflage.

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Did You Know?

Its caterpillars are called Orange Dogs because they can be pests in citrus orchards.

Japanese Spicebush Swallowtail

A striking all-black swallowtail known as 'kuro-ageha' in Japanese. The hindwings have subtle red and blue markings. Common in wooded areas and gardens across Japan and Korea.

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Did You Know?

The caterpillars of this species have a remarkable snake-mimicry defense, with large eyespots on their thorax that resemble a snake's head.