Parnassius phoebus, the Small Apollo, can be found in AK,WA,ID,WY,SD,CA,NV, and UT.
Favorite nectar plant: Taraxacum officinale
USDA Growing Zones for this plant include: 3,4,5,6,7,8,9

Host plants:
Sedum
Sedum debile
Sedum integrifolium
Sedum lanceolatum
Sedum obtusatum
Sedum obtusatum boreale
Sedum rhodanthum
Sedum rosea
Sedum stenopetalum