Found two on dillweed plant growing with tomato plant in container behind house. IDing with best guess based on internet searches.
crossing path through wetland
The (eastern) black swallowtail (Papilio polyxenes), also called the American swallowtail or parsnip swallowtail, is a butterfly found throughout much of North America. It is the state butterfly of Oklahoma. An extremely similar-appearing species, Papilio joanae, occurs in the Ozark Mountains region, but it appears to be closely related to Papilio machaon, rather than P. polyxenes. The species is named after a figure in Greek mythology, Polyxena (pron.: /pəˈlɪksɨnə/; Greek: Πολυξένη) who was the youngest daughter...