Size: 2.75 - 3.25 inches wingspan
Key ID features: Above pale, yellowish white with vertical bands of black on forewing, long single tails, blue chevrons on black band near hindwing margin. Similar pattern below, with red-orange shading in ivory marginal spots near the tail.
Similar species: Western Tiger Swallowtail is brighter yellow and has slightly narrower black bands on forewing
Host plant: Many shrubs and small trees including ceanothus, alder, cascara, and buckthorn.
Habitat: Can be found in any forest or shrubby habitat, and especially on ridges, along roads and in riparian corridors
Range: Throughout western Oregon, and in Ochoco Mtns, Strawberry Mtns, Blue Mtns, Wallowa Mtns.
Season: Mid-April - early October
Conservation Status: Secure