The males of this species has a pink chocolate brown appearance to its forewings with a small white dot.

I. theobroma are found in the northern parts of the North Island and inhabit kauri forests.

Adults of this species are on the wing from mid September until early November and are attracted to light.

[2] This species is endemic to New Zealand and is found in the northern parts of the North Island and is unknown south of the Auckland region.

[2] The adults of this species are on the wing from mid September until early November and are attracted to light.