Notoreas elegans is a species of moth in the family Geometridae, endemic to New Zealand.
[2] The epithet elegans means elegant and was used to honour the attractive colouration and pattern on the wings of the adult moth.
[2] When mature N. elegans larvae have a brown head, a bright green body with a band on its dorsal side coloured white with pink and yellow hints.
[1] N. elegans occurs at elevations of between 150 and 1900 metres in the valleys and alpine areas of the Mackenzie Basin, South Canterbury, Otago and Fiordland.
[3] When the larvae emerge from their eggs, they eat into the leaves or buds of their host, hiding from predators.