Western Poplar Sphinx
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Lepidoptera
- family: Sphingidae
- genus: Pachysphinx
- species: Pachysphinx occidentalis
Lethbridge
Medicine Hat
Alberta
CanadaSanta Cruz de las Flores
Jalisco
MexicoLas Cruces
Los Alamos
New MexicoFort Davis
TexasSpanish Fork
Taylorsville
Utah
United States