22—23 mm. Very near isoleuca, so determined in the Howes collection. Pectinations of ♂︎ slightly shorter. Markings broader, yellower; forewing with median line definitely and the postmedian rather acutely angled, subterminal extremely slight except anteriorly and as a dot in cellule 3; hindwing with similar distinctions.[2]
Distribution
This species is endemic to New Zealand.[1][6] This species has been found in Otago.[2]
Life cycle and behaviour
The female moth lays her eggs within the flower buds of their host plant.[7] When the larvae emerge from their eggs, they eat into the leaves or buds of their host, hiding from predators.[7] Once they are large enough, they emerge to feed from the fresh growth of the plant.[7]N. isomoera pupate in a loose cocoon on the ground under their host.[7]N. isomoera are day-flying moths.[7] They are low but fast flyers and constantly vibrate their wings to enable them to take off rapidly.[7]
Host species
The host plants for the larvae of N. isomoera are endemic species within the genera Pimelea and Kelleria.[8]
^ abcdefPatrick, Brian (Autumn 2015). "Discovering New Zealand's gorgeous moths"(PDF). Butterflies and Moths of New Zealand. New Zealand: Butterflies and Moths of New Zealand Trust. p. 13. Retrieved 4 May 2018.
^Patrick, Brian (Autumn 2015). "Discovering New Zealand's gorgeous moths"(PDF). Butterflies and Moths of New Zealand. New Zealand: Butterflies and Moths of New Zealand Trust. p. 13. Retrieved 8 December 2018.