Ischyja manlia is a species of moth of the Noctuidae family. It is found in the Indian Subregion, Burma, Thailand, China, Okinawa, Sundaland, Sulawesi, the southern Moluccas, Australia and Palau. Adults have brown forewings with a pale outer half. The hindwings are white with a dark brown margin. They pierce the skin of fruit to suck the juice. The larvae feed on Schima species, Ligustrum sinense, Cinnamomum camphora, Mangifera indica, Dimocarpus longan and Litchi chinensis.