Pretty sure thats what this is.
Even though their habitats differ, Desert Black Swallowtails are very similar to Anise Swallowtails (Papilio zelicaon). They differ in the shape of the yellow marginal spots of the forewing; roundish in the Desert Black and flat in the Anise Swallowtail. At least two, possibly three, of these butterflies were seen while hiking the Tuetonia Peak Trail and try as I might, I could never catch one at rest so I have to settle with these rapid-flutter , in-flight shots. The shape of the marginal forewing spots is clearly visible though, confirming this ID.
Accidentally deleted original record.
Adult male eastern black swallowtail.
On Zizea aurea in Piedmont Savanna Garden.
4 individuals present on parsley plant.
Brief description of what you observed
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...