Western Poplar Sphinx
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Lepidoptera
- family: Sphingidae
- genus: Pachysphinx
- species: Pachysphinx occidentalis
Lethbridge- Medicine Hat
Alberta
Canada
Santa Cruz de las Flores
Jalisco
Mexico
Las Cruces- Los Alamos
New Mexico- Fort Davis
Texas- Spanish Fork
- Taylorsville
Utah
United States