Neophasia menapia, the Pine White, can be found in WA,OR,ID,WY,SD,CA,NM,UT,NE,AZ,NM, and TX.
Favorite nectar plants include: Achillea and Cirsium
USDA Growing Zones for these plants include: 3,4,5,6,7,8,9,10

Host plants:
Abies balsamea
Abies grandis
Picea sitchensis
Pinus
Pinus contorta
Pinus contorta latifolia
Pinus edulis
Pinus jeffreyi
Pinus monticola
Pinus ponderosa
Pseudotsuga menziesii
Tsuga heterophylla

PD image courtesy of
USDA

CC0 image courtesy of
Alan Schmierer