T. M. A.  Lima, Sena, J. D. N., Câmara, J. T., and Teston, J. A., ?Complexes of species of Eumorpha Hübner [1807] (Lepidoptera: Sphingidae) from the Maranhão State, Brazil?, Zootaxa, vol. 5249, no. 4, pp. 425-445, 2023.