Twin-spotted Sphinx Moth
Smerinthus jamaicensis fam. Sphingidae (Hodges#7821)
Host plants: Found on black willow (Salix nigra)
Dates found: 15 September, 2025
Locations found: Little Creve Coeur Ecological Area, St. Louis County, MO
Notes: This species prefers willows and poplars but can be found on other woody species.
A Thousand Acres of Silphiums 