Children (10 direct children, 12 direct and indirect children):
Pachysphinx modesta
Modest sphinx
Pachysphinx occidentalis
(tree size 2)
Western poplar sphinx
Pachysphinx peninsularis
Pachysphinx imperator
Pachysphinx populicola
Pachysphinx princeps
Pachysphinx regalis
Pachysphinx borealis
Pachysphinx cablei
Pachysphinx kunzei