Uraba lugens, the gum-leaf skeletoniser, is a moth of the family Nolidae.

[2][3] Uraba lugens is nicknamed the mad hatterpillar because of its distinctive exoskeletal feature.

Over time, developing through its life span, the head grows bigger and sheds increasingly larger exoskeleton shells, which build upon each other.

[3] Management programmes were created and potential biological control agents were tested.

The two native species assessed were Meteorus pulchricornis and Xanthopimpla rhopaloceros, both being pupal parasitoids.