The Eastern Tiger Swallowtail (Papilio glaucus) is a striking butterfly known for its large size and vibrant yellow and black striped wings. Found in deciduous forests and gardens across Eastern North America, these butterflies exhibit sexual dimorphism, with females often displaying blue-tinged hindwings. They play a crucial role in pollination.

Papilio glaucus, commonly known as the Eastern Tiger Swallowtail, is native to North America. It is predominantly found in the eastern United States, ranging from southern Vermont and New Hampshire westward to eastern Nebraska and southern Colorado, and south to Florida, and the Gulf Coast.

The Eastern Tiger Swallowtail inhabits deciduous forests, woodlands, and riparian areas. It thrives in temperate climates with warm summers and mild winters. The species is often found in open areas such as fields, meadows, and forest edges, where sunlight is abundant.

Papilio glaucus plays a role as both a pollinator and a prey species within its ecosystem. Its larvae feed on a variety of host plants, including trees such as wild cherry, birch, ash, and tulip poplar. The adults nectar on a wide range of flowering plants, contributing to pollination. The species exhibits variations in habitat preference depending on regional adaptations, with some subspecies found in more southern locales showing affinity for more tropical conditions.