Each region of the body of animals of Arthropoda class is called tagmata. The process by which the animal body is divided into tagmata is called tagmatization. The evolutionary process by which tagmatization is accomplished is called tagmosis. The bodies of animals of the class Insecta of the order Arthropoda are divided into three tagmas. Namely – head, chest and abdomen. For example, grasshopper (Poekilocerux pictus).