The Levuana moth (Levuana iridescens) was a species of moth in the Zygaenidae family. It is monotypic within the genus Levuana. The Levuana moth is a purple moth that became a serious pest for coconut plants in 1877, in Viti Levu, Fiji. On the island, outbreaks of the Levuana moth were frequent, and as a result coconut palms were devastated due to feeding moth larvae on the underside of leaves. As a consequence, copra (dried coconut meat from which coconut oil is extracted) production was severely affected and coconut cultivation be came unprofitable on Viti Levu. Indigenous Fijian culture, which relied on the coconut for food, water, fiber, medicinal products, fuel, and building materials, was threatened as a result of this coconut pest. In 1916, following a forty-year isolation on Viti