Hypolimnas bolina also called Common Eggfly or Great Eggfly is a common butterfly from Australasia / Indomalaya ecozone (Australia). The first description was in 1758 by Linnaeus. With a wingspan of 8.0 – 9.0 cm the Common Eggfly is a small member of the family NYMPHALIDAE. The butterfly is black with white, orange and blue spots. The Common Eggfly is a good example for sexual dimorphism.