The Pipevine Swallowtail is a striking butterfly with iridescent blue-green hindwings in males and dark, neon-spotted wings in both sexes. Larvae sequester toxic aristolochic acids from their pipevine host plants, making both caterpillars and adults unpalatable to predators. It serves as the model for a mimicry complex involving several other swallowtail species.
Best time to see a Pipevine Swallowtail
The best time to see a Pipevine Swallowtail is March–July, when about 67% of U.S. sightings happen, based on 86,634 research-grade iNaturalist observations.
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Recent Pipevine Swallowtail sightings near you
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