Transferred to Theretra by Kirby, 1894, Novit. zool. 1: 101. Synonymized with Theretra rhesus by Rothschild & Jordan, 1903, Novit. zool. 9 (suppl.): 767. Reinstated as a subspecies of Theretra rhesus by Rothschild & Jordan, 1916, Novit. zool. 23: 263. Treated as a synonym of the nomintypical subspecies by Bridges, 1993, Cat. Fam. Gen. Spec. Sphingidae of the World: VIII.10. Raised to species status by Hogenes & Treadaway, 1998, Nachr. entomol. Ver. Apollo Suppl. 17: 99.