Larvae then dig underground to pupate.
Most common predator is the Guiana Striped Scorpion, which feasts on the moth's egg clusters. The common proximity of the two species, sometimes showing up as the moth lays her eggs, has resulted in erroneous conclusions that the moths give birth to the scorpions, and the resultant name "Scorpion Moth."
- Ceratomia undulosa undulosa (from Prince Edward Island and Nova Scotia west to eastern Alberta and Maine to Florida west to the eastern Great Plains and south to Florida, the Gulf Coast and Texas)
- Ceratomia undulosa polingi Clark, 1929 (Mexico)
- Fullard, James H.; Napoleone, Nadia (2001). "Diel flight periodicity and the evolution of auditory defences in the Macrolepidoptera" (PDF). Animal Behaviour. 62 (2): 349–368. doi:10.1006/anbe.2001.1753. Archived from the original (PDF) on 2007-06-15.
- "Waved sphinx (Ceratomia undulosa)". Moths of North America. U.S. Geological Survey Northern Prairie Wildlife Research Center. Archived December 7, 2005.
- Fauske, Gerald M. (January 23, 2007). "Ceratomia undulosa (Walker 1856)". Moths of North Dakota. Department of Entomology North Dakota State University. Retrieved December 13, 2020.