Wing span: 6.7-11 cm.

Flight time: Multiple brooded, with flights occurring from late-April through early-June, mid-June through mid-July, late-July through August, and September through early October.

Status: Breeding resident.

Distinguishing features: This easily recognized Swallowtail is black with two rows of submarginal yellow spots. The hind wing has a blue band between the yellow rows of spots, which are more extensive in females. There is a red spot at the anal angle of the hindwing, which always has a black center.

Distribution and habitat: Found commonly throughout the state in a variety of open habitats.

Natural History: Larvae of this species are particularly fond of cultivated and naturalized members of the carrot family, including parsley, dill and carrots (including Queen Anne's lace), often decimating garden plantings of these vegetables. Because of the abundance of its host plants, it is often the most commonly observed swallowtail. Larval appearance changes across each of its four instar stages, with the first two being bird-dropping mimics, the third being mostly black and the fourth being green.