This may be redundant, but the question sometimes comes up: Spicebush or Black Swallowtail?

These two newly hatched individuals were seconds away from release and decided to pose for an educational poster.

Spicebush Swallowtail Papilio troilus

* Is usually large

* Has "blue comet" mark that pushes through the orange spots in the disc.

* Has small orange spot with no black eyespot at bottom of submargin.

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Black Swallowtail Papilio polyxenes

* Is usually smallish

* Has complete row of orange spots in disc

* Has large orange spot with black eyespot at bottom of submargin.

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