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Digital Guide to Moth Identification

890149 – 7829   Pachysphinx occidentalis (Edwards, 1875)
             Western Poplar Sphinx

© Margarethe Brummerman
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Smerinthus occidentalis Edwards, 1875
Smerinthus imperator Strecker, [1878]
Pachysphinx kunzei Rothschild & Jordan, 1903
Pachysphinx regalis Rothschild & Jordan, 1903
  • Barcode of Life (BOLD) - Caution: DNA barcode provides evidence of relatedness, not proof of identification, and some BOLD specimens shown may not be sequenced.
  • Hodges, R. W., 1971. Moths of America North of Mexico, Fascicle 21:p. 91; pl. 8.8-10. order or free PDF
  • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 39.1m; p. 242. Book Review and ordering
  • Species Page at Bill Oehlke's moth website - Pachysphinx occidentalis
  • Species Page at BugGuide.Net
  • Species Page at Pacific Northwest Moths
  • Tuttle, J. P., 2007. Hawk Moths of North America: p. 127; pl. 11.10.
Pachysphinx occidentalis
© Jillian Cowles
Pachysphinx occidentalis
© Jim Escoffier
Pachysphinx occidentalis
© Charles Melton
Pachysphinx occidentalis
140mm – © Jim Vargo
Pachysphinx occidentalis
© Teá Montagna LG
3rd Instar on Populus
Pachysphinx occidentalis
© Teá Montagna LG
5th Instar on Populus

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