Giant Swallowtail of the Andes vs Cranberry Blue

Side-by-side species comparison

Attribute Giant Swallowtail of the Andes Cranberry Blue
Scientific Name Papilio thoas Plebejus optilete
Order Lepidoptera Lepidoptera
Family Papilionidae Lycaenidae
Size 110-140 mm wingspan 22-28 mm wingspan
Habitat Rivers & Streams Underground
Diet Nectar Feeders Nectar Feeders
Regions South America (Brazil, Argentina, Colombia, Venezuela, Peru, Ecuador, Bolivia) Scandinavia, Finland, northern Russia, Siberia, subarctic Japan
Conservation Least Concern Least Concern

Giant Swallowtail of the Andes

One of the largest swallowtail butterflies in South America, with bold yellow and black striped wings and long tail streamers. It is a powerful flier that ranges from sea level to over 2000 m in the Andes. Larvae mimic bird droppings as a defense mechanism.

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Did You Know?

When threatened, the caterpillar everts a bright red forked organ called an osmeterium from behind its head, releasing a foul-smelling chemical.

Cranberry Blue

A small butterfly with violet-blue upperwings in males and dark brown in females. The hindwing underside has a diagnostic metallic silver spot. It frequents boggy habitats where its larval foodplant cranberry grows.

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Did You Know?

The caterpillar is tended by ants which protect it from parasitoids in exchange for sweet honeydew secretions.