Eastern Tiger Swallowtail

Description:

It has a wingspan measuring 7.9 to 14 centimeters (3 to 5.5 in). The male is yellow with four black "tiger stripes" on each fore wing. Females may be either yellow or black, making them dimorphic. The yellow morph is similar to the male, but with a conspicuous band of blue spots along the hindwind, while the dark morph is almost completely black.

Habitat:

It is found in the eastern United States from southern Vermont to Florida west to eastern Texas and the Great Plains. It is common throughout its rangeit is common in many different habitats. It can be found almost anywhere deciduous forests occur. Common habitats include woodlands, fields, rivers, creeks, roadsides, and gardens. It will stray into urban parks and city yards.

Notes:

This was spotted on some scat along the Western Maryland Rail Trail, which is maintained by MD state parks.