Doratifera vulnerans, commonly known as the mottled cup moth, Australian cup moth or Chinese Junk (referring to its caterpillar), is a species of cup moth of the family Limacodidae. The species was first described by John Lewin in 1805 and is the type species of the genus Doratifera. It is found in Australia. It is known for its caterpillar having unique stinging spines or hairs that contain toxins, for which the scientific name is given that means "bearer of gifts of wounds". Chemical and genetic analysis in 2021 show that its caterpillar contains 151 toxins, some of which have medicinal properties.

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