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Chinese Yellow Swallowtail

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description Chinese Yellow Swallowtail Overview

The Asian swallowtail, Papilio xuthus, is a yellow and black butterfly native to East Asia and also established in some other regions. Its caterpillars feed on plants in the citrus family, including cultivated Citrus species, and possess an eversible defensive organ called an osmeterium. The species is familiar in gardens and agricultural landscapes and is also used in research on butterfly vision, behavior, and development.

help Chinese Yellow Swallowtail FAQ

What is the scientific name of the Chinese yellow swallowtail?

The Chinese yellow swallowtail is Papilio xuthus, also commonly called the Asian swallowtail. It is native to East Asia and has become established in some other regions.

What do Papilio xuthus caterpillars eat?

Its caterpillars feed on plants in the citrus family, including cultivated Citrus species. This association with orange, lemon, and related plants is why the species can appear in gardens and orchards.

How does a Chinese yellow swallowtail defend itself as a caterpillar?

The caterpillar has an eversible defensive organ called an osmeterium. When threatened, it can extend the organ from behind the head and release a strong odor that may deter predators.

What does the adult Chinese yellow swallowtail look like?

Adults are yellow and black, with the long hindwing tails typical of many swallowtails. The pattern can vary between sexes and generations, but the yellow ground color and dark bands are central identification features.

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