Two new species of the genus Stictane, S. heppneri n. sp. and S. transversana n. sp. are described from Cambodia along with one newly recorded species, S. obscura (Inoue, 1976). A key to the Cambodian species of the genus Stictane with figures of adults and genitalia are presented. Moreover, adults of the little known three Vietnamese species of Diduga are illustrated herein.
Keywords: Lepidoptera, description, Stictane heppneri, transversana, obscura, Lithosiini, taxonomy, Cambodia, new record, distribution.