Size: 2.5 - 3.0 inches wingspan
Key ID features: Black with broad buttery yellow bands, twisted tails, black abdomen with narrow yellow side-stripes. Below similar pattern, with paler yellow ground color and reddish-orange halos on some of the black-bordered blue chevrons.
Similar species: Oregon Swallowtail, which is larger, more lemony yellow, abdomen yellow with narrow black stripe on top and sides
Host plant: Many species in the parsley family, including many native Lomatium species.
Habitat: Variety of open areas, including wetlands, dunes, mountaintops, roadsides, and disturbed areas
Range: Throughout Oregon.
Season: Late February - mid-September
Conservation Status: Secure