Black swallowtail

What does Black swallowtail look like?

A black butterfly with rows of yellow spots across the wings and blue and orange markings near the tailed hindwings.

Is Black swallowtail dangerous?

Harmless. Its caterpillar feeds on parsley, dill and carrot tops, so it's an occasional, minor garden nibbler.

Commonly confused with

• Pipevine swallowtail: iridescent blue hindwings, no yellow spot rows