Chinese Moon Moth (Actias luna) Luna Moths are members of the Saturniidae family, also known as the "Giant Silkworm Moths." Luna Moths are huge moths, with a wingspan of four and a half inches. They have a white body, pinkish legs, and huge pale green wings. The hindwings have eyespots and long tails. They fly, only at night, in Spring and early Summer. Luna Moths were once very common, but are now considered an endangered species in some areas.