Size: 2.75 - 3.75 inches wingspan

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Key ID features:  Upperside yellow with vertical black bands, prominent tails, blue chevrons above long single tail. Below, very similar to above, with red-orange shading in yellow marginal spots near the tail.

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Similar species:  Anise Swallowtail has more black on forewing; Pale Swallowtail much paler; Two-tailed Swallowtail is larger, has double tails, broader yellow bands. 

 

Host plant: Willows, maples, and many other native trees.

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Habitat: Riparian areas, canyons, watersides, trail, parks, often near water.

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Range: Throughout Oregon, often lower than Pale Swallowtail, but sometimes up to 7,000 feet.

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Season: Mid-April - mid-August

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Abundance: Very common

 

Conservation Status: Secure