Synonymized with Hippotion boerhaviae by Rothschild & Jordan, 1903, Novit. zool.9 (suppl.): 756. Reinstated as a species by Holloway, 1987, Moths of Borneo3: 173. Erroneously synonymized with Hippotion boerhaviae by Bridges, 1993, Cat. Fam. Gen. Spec. Sphingidae of the World VIII.9. Reinstated as a species by Kitching & Spitzer, 1995, Tinea14: 189.