Macroglossum marquesanum has a wingspan of 60–65 mm (2.4–2.6 in) (in males), and a body length of about 15–16.5 mm (0.59–0.65 in). These large moths have dark brown or brown-olive head, thorax and abdomen. Forewings are brown, with three faintly defined transversal darker patches. Hindwings are yellowish.[2]
Bibliography
Pinhey, E (1962): Hawk Moths of Central và Southern Africa. Longmans Southern Africa, Cape Town.
Pierre E. I. Viette - Catalogue of the Heterocerous Lepidoptera from French Oceania
A. M. Adamson Foreword - Review of the Fauna of the Marquesas Islands and Discussion of its Origin
Christophe Avon - Sphingidae Bibliography (2016)
C. L. Collenette - The Arctiidae, Noctuidae and Sphingidae of the St. George Expedition from French Oceania