Aristotelia iomarmara is a moth of the Gelechiidae family. It was described by Meyrick in 1921. It is found in Australia, where it has been recorded from Queensland. The wingspan is about 8 mm. The forewings are light ochreous-grey, irregularly sprinkled and strigulated darker grey, with strong purple reflections. The second discal stigma is dark grey. The hindwings are light grey.