Sphinx libocedrus (Taxonomy)
Erroneously synonymized with Sphinx vashti by Carcasson & Heppner, 1996, Atlas Neotrop. Lepid.4B: 52. Reinstated as a species by Kitching & Cadiou, 2000, Hawkmoths of the world: 67.
A smallish species: forewing length 28-35 mm.Similar in appearance to Sphinx chersis and Sphinx asellus, but even smaller than Sphinx perelegans.Inner angle of forewing less rounded than in related species. Forewing upperside pale bluish grey to dark grey, marked with dark lines along the veins and distinct apical line, which is continuous, not interrupted and offset as it is in Sphinx asellus. Hindwing underside with a distinct apical line, absent from Sphinx asellus. Mesothoracic tegula with a thin brown mesial line.Abdomen with white or yellowish lateral patches bordered all round with black. Legs similar to those of Sphinx chersis. Very similar to that of Sphinx perelegans, but:uncus shorter;gnathos much more deeply sinuate;harpe with long process curved downwards and recurved apically;aedeagus obliquely truncate, without an elongate, slender process.