Sphingidae Leach, 1819
Pachysphinx borealis Clark, 1929
Pachysphinx cablei Reizenst., 1881
Pachysphinx imperator Strecker, 1878
Pachysphinx kunzei Rothschild & Jordan, 1903
Pachysphinx modesta Harris, 1839
Pachysphinx modestus (Harris)
Pachysphinx occidentalis Edwards, 1876
Pachysphinx peninsularis Cary, 1963
Pachysphinx populicola Boisduval, 1875
Pachysphinx princeps Walker, 1856
Pachysphinx regalis Rothschild & Jordan, 1903
