The preferred habitat of this species is humid native forest and the adults are on the wing from September to December.

[2] The holotype specimen was collected as a larva by Hoare on Farley Track in the Waitākere Ranges.

[2] However I. chlorodonta differs from I. subcyprea as the male of that species has slightly longer pectinations, it has a distinctive lilac-grey to lead grey colour to the antemedian and postmedian lines, green scaling between antemedian and postmedian lines, much darker brown hindwings, and has a paler underside of the hindwings.

[2] This species has also been found in the South Island in Southland in the Opouri Valley.

[2] The adults of this species are on the wing from September to December, although there is one record each from January and July.