Long-tailed Skipper vs Japanese Oakblue

Side-by-side species comparison

Attribute Long-tailed Skipper Japanese Oakblue
Scientific Name Urbanus proteus Arhopala japonica
Order Lepidoptera Lepidoptera
Family Hesperiidae Lycaenidae
Size 43-55 mm wingspan 30-40 mm wingspan
Habitat Farmland Forests
Diet Omnivores Nectar Feeders
Regions Southern United States through Central and South America East Asia, Japan
Conservation Least Concern Least Concern

Long-tailed Skipper

A striking skipper with iridescent blue-green body and wing bases and long tail-like projections on the hindwings. It is a strong flier and occasional migrant.

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Did You Know?

Known as the bean leaf roller because the caterpillar folds bean leaves into tubular shelters.

Japanese Oakblue

A beautiful lycaenid butterfly with brilliant metallic blue upperwings and cryptic brown underwings. Found in oak forests where its larvae live in association with ants. Known as 'murasaki-shijimi.'

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Did You Know?

The caterpillars produce sweet secretions that attract ants, which then guard them from predators in a mutualistic relationship.