Only my 3rd observation of this species in five summers, all three between 24.1 and 11.2. Only stayed for a few seconds.
Very distinctively scalloped outer (or lower, in photo) edge of upper wing.
Est to be just over 20mm across widest part of wings (photo 2).
Deserted rifleman nest in a nest box, contains 8 eggs
Caught in a light trap
Sitting on fallen rimu leaves beneath a large rimu
Drawn to porch light
Ridges/spikes on back. On a kōwhai tree.