Achaea serva is a species of noctuid moth of the family Erebidae first described by Johan Christian Fabricius in 1775. It is found from the Indo-Australian tropics of India, Sri Lanka, Myanmar, China, Borneo, Hong Kong, Java, the Philippines, the New Hebrides, to Okinawa, many western Micronesian islands and New Guinea and Australia.
This species has a wingspan of 70âÂÂ82 mm for the males and 62âÂÂ80 mm for the females.
Recorded larval food plants include Buchanania, Ipomoea, Diospyros, Rosa, Sapindus, Madhuca, Manilkara, Mimusops, Palaquium, Sideroxylon, Excoecaria agallocha, Ricinus communis and Acacia auriculiformis.