J.  Haxaire, ?Description of a new species of Sphingidae from the USA, Sphinx vanbuskirki n. sp., and confirmation of the synonymy of Sphinx coloradus Smith, 1887 with Sphinx dollii Neumoegen, 1881. Lepidoptera, Sphingidae, Sphinginae?, The European Entomologist, vol. 12, no. 1, pp. 21-36, 2020.

J.  Haxaire, ?Sphinx nogueirai, nouveau Sphingidae du Sonora (Lepidoptera Sphingidae)?, Lambillionea, vol. 102, no. 4, pp. 459-462, 2002.