Black Swallowtail

Lovely series!

Very striking ...good catch

This is a Black Swallowtail. You can differentiate Black Swallowtail from Spicebush because the Blacks Swallowtail has a black spot at the center of the orange spot on the inner margin of the hindwing. Spicebush Swallowtails have the orange spot, but no black spot at the center. Also, in Spicebush Swallowtails, the row of orange spots that runs down the middle of the underside of the hindwing is interrupted by a streak of blue that looks like a comet. You can see a side by side comparison at the link below. http://www.naba.org/chapters/nabambc/frames-2species.asp?sp1=Papilio-polyxenes&sp2=Papilio-troilus