Spodoptera litura, the Oriental leafworm moth, is a noctuid moth which is considered an agricultural pest. It is also known as the cluster caterpillar, cotton leafworm, tobacco cutworm, and tropical armyworm. It is found in the Indo-Australian tropics. It is also established on most Polynesian islands, where it occurs in a variety of island forms. The larvae feed on a wide range of plants and have been recorded from over 40 mostly dicotyledonous plant families. It is a major pest of many crops.