A fine example of cryptic patterning, with the somewhat folded costa of the forewing adding to the effect of a crumpled dead leaf.
Feeds in stems of pohuehue vines, causing elliptical swelling or gall. After emergence, other invertebrates (e.g. spiders, darkling beetles, other moth larvae) can move into the gall.
Pupates in feeding place. Must chew through bark for adult to emerge.
Forewing pattern mimics crumpled dead leaf. November to February. Males sometimes fly by day in sunshine. Both sexes fly by night, attracted to light.
8 - 17mm
Native forest, shrubland, coastal areas.