iThe black swallowtail has a row of yellow marks along the margins of dark wings and some blue near the hindwing tails. Its caterpillars can feed on dill, parsley, and carrot leaves, making an herb or vegetable bed a likely place to spot them.
iiThe black swallowtail has a row of yellow marks along the margins of dark wings and some blue near the hindwing tails. Its caterpillars can feed on dill, parsley, and carrot leaves, making an herb or vegetable bed a likely place to spot them.