A. E.  Sallema and Selemani, S. S., ?Diversity and abundance of a pollinator group: hawkmoths (Lepidoptera: Sphingidae) in forests and surrounding farmlands, East Usambara Mountains, Tanzania?, International Journal of Environmental Sciences & Natural Resources, vol. 31, no. 1, p. 556307, 2022.

J.  Gerlach, ?Preliminary conservation status and needs of an oceanic island fauna: the case of Seychelles insects?, Journal of Insect Conservation, vol. 12, pp. 293-305, 2008.

H.  Hacker, ?Colour plates 143-324?, in Systematic and illustrated catalogue of the Macroheterocera and superfamilies Cossoidea Leach, [1815], Zygaenoidea Latreille, 1809, Thyridoidea Herrich-Schäffer, 1846 and Hyblaeoidea Hampson, 1903 of the Arabian Peninsula, vol. Esperiana, H.  Hacker, Ed. Schwanfeld: Wissenschaftlicher Verlag-Peks, 2016, pp. 149-364.

H.  Hacker, ?Family Sphingidae Latreille, 1802?, in Systematic and illustrated catalogue of the Macroheterocera and superfamilies Cossoidea Leach, [1815], Zygaenoidea Latreille, 1809, Thyridoidea Herrich-Schäffer, 1846 and Hyblaeoidea Hampson, 1903 of the Arabian Peninsula, vol. Esperiana, H.  Hacker, Ed. Schwanfeld: Wissenschaftlicher Verlag-Peks, 2016, pp. 51-60.

P.  Basquin, ?État de nos connaissances des Lépidoptères Hétérocères de São Tomé et Principe?, Saturnafrica, vol. 25, pp. 11-27, 2017.

L. W.  Rothschild and Jordan, K., ?A revision of the lepidopterous family Sphingidae?, Novitates Zoologicae (Supplement), vol. 9, pp. i-cxxxv + 1-972, 1903.

L. W.  Rothschild, ?Notes on Sphingidae, with descriptions of new species?, Novitates Zoologicae, vol. 1, pp. 65-98, 1894.

J.  Pierre, Michaloud, S., and Pierre-Baltus, C., ?Élevages de quelques Lépidoptères sphingides à Makokou, Gabon?, Bulletin de la Société Sciences Nat., vol. 46, pp. 9-11, 1985.

P.  Oremans and Pierre, J., ?Les Sphinx de São Tomé (Lepidoptera, Sphingidae)?, Bulletin de la Société Entomologique de France, vol. 107, no. 3, pp. 294-296, 2002.

H.  Legrand, ?Lépidoptères des îles Seychelles et d'Aldabra?, Mémoires du Muséum National d'Histoire Naturelle, vol. 37, pp. 1-210, 1966.

S. G.  Kiriakoff, ?Lepidoptera Heterocera?, Exploration du Parc National de l'Upemba. Mission G.F. de Witte, vol. 26, pp. 1-69, 1954.

J. B. A. E.  de Boisduval, Histoire naturelle des insectes. Species général des Lépidoptères Hétérocères. 1. Sphingides, Sésiides, Castnides, vol. 1. Paris: Librairie Encyclopédique de Roret, 1875, pp. 1-568 + 1-4.