Mathew, P.; Sivasankaran, K.; Anand, S.; Ignacimuthu, S. A Survey of the Genus Theretra Hubner, 1819 (Lepidoptera: Sphingidae) from Kodaikanal Hills (Western Ghats), Tamil Nadu, India. Int. J. Sci. Res. Biol. Sci. 2019, 6, 253-262.