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Digital Guide to Moth Identification

890148 – 7828   Pachysphinx modesta (Harris, 1839)
             Big Poplar Sphinx

Jo McGavin
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Smerinthus modesta Harris, 1839
Pachysphinx borealis Clark, 1929
Smerinthus cablei Reizenstein, 1881
Smerinthus populicola Boisduval, [1875]
Smerinthus princeps Walker, 1856
  • Barcode of Life (BOLD) - Caution: DNA barcode provides evidence of relatedness, not proof of identification, and some BOLD specimens shown may not be sequenced.
  • Hall et al., 2021. The Moths of North Carolina - website (identification, habitats and life history)
  • Hodges, R. W., 1971. Moths of America North of Mexico, Fascicle 21:p. 90; pl. 8.5, 7. order or free PDF
  • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 39.2m; p. 242. Book Review and ordering
  • Species Page at Bill Oehlke's moth website - Pachysphinx modesta
  • Species Page at BugGuide.Net
  • Species Page at E. H. Strickland Museum
  • Species Page at Mass Moths
  • Species Page at Pacific Northwest Moths
  • Tuttle, J. P., 2007. Hawk Moths of North America: p. 126; pl. 11.4.
Pachysphinx modesta
Janice Stiefel
Pachysphinx modesta
Nolie Schneider
Pachysphinx modesta
Tim Dyson
Pachysphinx modesta
Jason Dombroskie
Pachysphinx modesta
130mm – Jim Vargo
Pachysphinx modesta
Stuart Schwartz
4th instar
Pachysphinx modesta
Stuart Schwartz
3rd instar
Pachysphinx modesta
Stuart Schwartz
2nd instar

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