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Zebra Swallowtail

Eurytides marcellus

Adult zebra swallowtails feed on nectar from flowers such as redbud, milkweed and verbena. (Dave Govoni/Flickr)
Adult zebra swallowtails feed on nectar from flowers such as redbud, milkweed and verbena. (Dave Govoni/Flickr)

The zebra swallowtail is a butterfly with thick, black stripes on its white wings. It lives in moist, low woodlands where its host plant, the paw paw tree, grows.

Appearance:

Zebra swallowtails have long, triangular wings with black, zebra-like stripes on a whitish background. Its wingspan grows to approximately 2 to 4 inches. Two blue spots and long, thin tails appear at the ends of the wings, and red spots appear on the wings near the lower part of the body. The wings are smaller and lighter-colored in early spring. Zebra swallowtails have reddish antennae. 

Caterpillars are hairless. They have two color morphs: green with yellow and black bands, and dark brown with orange and white bands.

Habitat:

Lives in areas where paw paws grow: primarily moist, low woodlands near rivers and swamps.

Range:

Zebra swallowtails can be found throughout the Chesapeake Bay watershed; they are most common in the southern portion of the Bay region, including Delaware, Maryland, Virginia and West Virginia.

Feeding:

Adults feed on nectar from flowers such as redbud, milkweed and verbena. Caterpillars feed on paw paw leaves.

Flight:

The zebra swallowtail flies erratically and low to the ground with shallow wingbeats.

Reproduction and Life Cycle:

Breeds in moist, wooded areas where paw paws grow. Males patrol the understory to find a mate. After mating, females lay single green eggs on the underside of paw paw leaves or on paw paw trunks. After hatching, caterpillars live on the paw paw leaves as they eat and grow. Once it is fully grown, the caterpillar uses silk to attach itself to a stem or leaf. It sheds its skin and forms a cocoon called a chrysalis. Inside the chrysalis, the caterpillar morphs into an adult butterfly. It takes about one month for a zebra swallowtail to mature from egg to adult. Adults live up to six months.

Other Facts:

  • Small groups of males often congregate on moist sand and soil. They obtain salt and other nutrients this way.

Sources and Additional Information:




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