The Hackberry Emperor is a brushfooted butterfly that lives near woodland edges, creeks, buildings, and damp, muddy areas. They’re found in northeastern Mexico, as well as the southwestern and eastern United States. Adults don’t usually feast on flowers, instead preferring rotting fruit, tree sap, dung, and animal carcasses (how morbid). The Hackberry Emperor is named after its only host plant (where females lay eggs), the Hackberry tree.
https://www.inaturalist.org/observations/5601818