Ariadne merione ginosa

Fruhstorfer 1912 - The Common Castor

Koh Samui only.

Uncommon butterfly of the forests and forest edges. It can be distinguished from Ariadne isaeus by the white spot on the forewing, and from Ariadne ariadne by the two black lines just past the cell on both fore and hind wings.

Flight Period

x         xxx  x   


38 - 45mm

Early Stages

Fully known. More detailed life history information is available from the following resources: S. Igarishi - Life Histories of Asian Butterflies, Volume.1 , Page 377.

Larval Foodplant

Ricinus communis (Euphorbiaceae) - Castor-Oil Plant


Peninsular Thailand, Malay Peninsular and Sumatra. Other subspecies in Sri Lanka, India, Thailand (not Peninsular) through Indo-China to S. China, Borneo, Java, Philippines and Sulawesi.