Neotropical Blue Hairstreak vs Emperor Swallowtail

Side-by-side species comparison

Attribute Neotropical Blue Hairstreak Emperor Swallowtail
Scientific Name Pseudolycaena marsyas Papilio ophidicephalus
Order Lepidoptera Lepidoptera
Family Lycaenidae Papilionidae
Size 35-45 mm wingspan 100-130 mm wingspan
Habitat Rivers & Streams Beaches & Coastal
Diet Nectar Feeders Nectar Feeders
Regions Brazil, Peru, Colombia, Ecuador, Bolivia Southern Africa, East Africa
Conservation Least Concern Least Concern

Neotropical Blue Hairstreak

A brilliant iridescent blue hairstreak butterfly with delicate tail streamers on the hind wings. Its underside is pale grey with fine dark lines.

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Did You Know?

Its false head pattern on the hind wing tips, complete with fake antennae, tricks predators into attacking the wrong end.

Emperor Swallowtail

South Africa's largest butterfly with bold black and yellow-green markings. Its caterpillar mimics a bird dropping in early instars.

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Did You Know?

The caterpillar's head bears false eyespots that make it resemble a small snake to deter predators.