Hypolimnas octocula, known as the Eight-Spot Butterfly, is a species of eggfly or diadems endemic to several islands and island chains in Oceania, including New Caledonia, Vanuatu and the Mariana Islands. It includes the following sub-species: \n* H. o. octocula Butler, 1869 \n* H. o. pallas Grose-Smith \n* H. o. elsina Butler \n* H. o. formosa Herrich-Schäffer \n* H. o. marianensis