This species is endemic to New Zealand.[1][5] It is found in the mountain ranges of Central Otago as well as in the Kakanui Mountains at altitudes of between 1200 and 1500 metres.[6][7]
Biology and behaviour
This species is a day flying moth.[8] It is on the wing from December to February.[6] Adult moths, when settled, continue to vibrate their wings ensuring they are immediately ready to take off should they be disturbed.[8] Although they prefer sunshine they will continue to fly when conditions are cloudy.[8] They fly relatively low to the ground.[8] When resting for long periods they adopt the posture of holding their wings together above their body.[8]
Habitat and host species
This species frequents alpine herbfield habitat.[9] The larvae of this species feed on Kelleria villosa.[6][10]
^ abProut, L. B. (1939). "Geometridae: Fauna Indo-Australica". The Macrolepidoptera of the World (Stuttgart). 12: 237–292 – via Biodiversity Heritage Library.