Charixena iridoxa, also known as the Astelia zig-zag moth, is a moth classified sometimes in the family Glyphipterigidae and sometimes in Plutellidae. It was first described by Edward Meyrick in 1916. This species is endemic to New Zealand and has been observed in the North, South and Stewart Islands. The life cycle of this moth is at least two years in length with the larvae inhabiting the bulb of its host plants and mining the underside of its leaves. These mines have a distinctive zig-zag appearance and can be easily recognised when looked for on the host plants. The larvae pupate in a cocoon attached to the leaf and this stage takes place between February and August. The adult moths emerge in the early spring and are fast, day flying moths. Their larval hosts are plants in the genus Astelia and include Astelia fragrans and Astelia nervosa.

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