The Common Eggfly Butterfly, Hypolimnas bolina, is a large butterfly from tropical northern Australia. On rare occasions of favourable humidity, sightings have been recorded in South Australia between February to May. Host plants for the Common Eggfly become abundant with the flooding of inland waterways into the Lake Eyre Basin. A small number were sighted in Copley, Flinders Ranges, in late January during a La Nina season which has generated rains to central Australia. More detailed information on this butterfly can be found on the Butterfly Conservation SA website.