Waved Sphinx
Ceratomia undulosa fam. Sphingidae (Hodges#7787)
Host plant(s): Found on hickory (Carya sp.)
Date(s) and location(s): 31 August, 2025 – Tyson Research Center, St. Louis County, MO
Notes: This is one of those perplexing situations. Wagner and most other authorities suggest this species hosts solely on ash (Fraxinus), but I found this guy actively feeding on a mid-sized hickory during an evening hunt.
A Thousand Acres of Silphiums 