Size: Over 5 inches wingspan
Key ID features: Very large. Upperside mostly yellow with wide bands of yellow on forewing separated by black lines, extra tails, blue chevrons on black band near hindwing margin. Below, very similar to above, with red-orange shading in yellow marginal spots near the tail.
Similar species: Western Tiger Swallowtail is smaller and has broader black bands on forewing and single tails.
Host plant: Primarily western choke cherry (Prunus virginiana var. demissa).
Habitat: Riparian and road corridors, canyons and urban parks and gardens.
Range: Throughout eastern and southwestern Oregon.
Season: Late March - mid-September
Conservation Status: Secure