Homerus Swallowtail vs Japanese Yellow Swallowtail

Side-by-side species comparison

Attribute Homerus Swallowtail Japanese Yellow Swallowtail
Scientific Name Papilio homerus Papilio machaon hippocrates
Order Lepidoptera Lepidoptera
Family Papilionidae Papilionidae
Size 130-150 mm wingspan 70-90 mm wingspan
Habitat Mountains Mountains
Diet Omnivores Nectar Feeders
Regions Jamaica (Blue Mountains and John Crow Mountains only) East Asia, Japan
Conservation Endangered Least Concern

Homerus Swallowtail

The largest butterfly in the Americas, with a wingspan reaching 150 mm and bold black and yellow patterning. It is endemic to Jamaica and restricted to two mountain ranges.

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Did You Know?

Fewer than an estimated 500 adults exist in the wild, confined to shrinking patches of Jamaican mountain forest.

Japanese Yellow Swallowtail

The Japanese subspecies of the Old World swallowtail, known as 'ki-ageha.' A large and elegant butterfly with bright yellow wings marked with black patterns and blue hindwing spots.

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Did You Know?

This butterfly engages in 'hilltopping' behavior, where males fly to hilltops and ridges to establish territories and wait for females.