Home » What is the Difference Between a Tiger Swallowtail and a Zebra Swallowtail?
Butterflies (Papilionoidea) Eastern Tiger Swallowtail Swallowtails (Papilionidae) Zebra Swallowtail (Protographium marcellus)

What is the Difference Between a Tiger Swallowtail and a Zebra Swallowtail?

The Tiger Swallowtail (Papilio glaucus) and the Zebra Swallowtail (Protographium marcellus) are both species of butterflies and belong to the Papilionidae family. While they share some similarities, there are several notable differences between them:

Appearance:

Tiger Swallowtail:

The Tiger Swallowtail is a large butterfly with a wingspan ranging from 7 to 10 centimeters (2.8 to 4 inches). The upper side of the male’s wings is yellow with black stripes, resembling a tiger’s pattern, hence the name. The female can have two forms: a yellow form similar to the male and a dark form with blue and black markings.

Zebra Swallowtail:

The Zebra Swallowtail is also a large butterfly, but slightly smaller than the Tiger Swallowtail, with a wingspan of about 6 to 9 centimeters (2.4 to 3.5 inches). It has distinctive black and white-striped wings. The hind wings have long, slender tails, giving them a zebra-like appearance.

Wing Patterns

– Tiger Swallowtail:

The male Tiger Swallowtail has prominent black stripes running across its yellow wings. The stripes are more extensive and bolder compared to the female. The female can have a similar pattern, but she may also have a dark form where the wings are predominantly black with blue and black markings.

– Zebra Swallowtail:

The Zebra Swallowtail has a striking black and white striped pattern on its wings, resembling the stripes of a zebra. The wings are predominantly white with bold black stripes, giving them a highly contrasting appearance.

Geographic Range

– Tiger Swallowtail:

The Tiger Swallowtail is found across North America, ranging from southern Canada down to Mexico and Central America.

– Zebra Swallowtail:

The Zebra Swallowtail is primarily found in the eastern and southern parts of the United States, including the Great Lakes region, the Atlantic coast, and parts of the Midwest.

Host Plants

– Tiger Swallowtail: The larvae (caterpillars) of the Tiger Swallowtail feed on a variety of tree species, including tulip tree (Liriodendron tulipifera), sweetbay magnolia (Magnolia virginiana), and wild cherry (Prunus spp.).

Sweetbay Magnola is the larval host plant of Tiger Swallowtails.

– Zebra Swallowtail: The larvae of the Zebra Swallowtail have a more specific diet. They primarily feed on the leaves of pawpaw trees (Asimina spp.), which are native to the eastern and southern United States.

Flag Pawpaw, the larval host plant for Zebra Swallowtails.

These are some of the key differences between the Tiger Swallowtail and the Zebra Swallowtail butterflies. Their distinct wing patterns, geographic ranges, and host plant preferences contribute to their unique characteristics and make them somewhat easily distinguishable from each other.

More important than perfect identification is creating the proper ecology for butterflies so we can continue to see them flutter about our world.. one day at a time!

Zebra Swallowtail on Milkweed as a nectar source.

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