Pipevine Swallowtail vs Silver Y

Side-by-side species comparison

Attribute Pipevine Swallowtail Silver Y
Scientific Name Battus philenor Autographa gamma
Order Lepidoptera Lepidoptera
Family Papilionidae Noctuidae
Size 70-110 mm wingspan 35-45 mm wingspan
Habitat Grasslands Farmland
Diet Omnivores Nectar Feeders
Regions North America from southern Canada to Mexico Europe, Asia, Africa
Conservation Least Concern Least Concern

Pipevine Swallowtail

A dark swallowtail with brilliant iridescent blue hindwings and an orange-spotted underside. Its toxicity from Aristolochia host plants makes it the model for several mimicry complexes.

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Did You Know?

At least five other butterfly species mimic its appearance to gain protection from predators.

Silver Y

A migratory moth marked with a bright silvery Y or gamma symbol on each forewing. Billions migrate northward across Europe each spring in one of nature's great insect movements.

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Did You Know?

Radar studies revealed that up to 250 million Silver Y moths cross into Britain in a single summer.