Pseudoclanis tomensis is a species of hawkmoth of the family Sphingidae. It occurs on the island of São Tomé.Pseudoclanis tomensis Pierre, 1992, AfroMoths, an online database of Afrotropical moth species It was first described by Jacques Pierre in 1992.Pierre, J. (1992). "Spéciation et évolution chez les Sphinx du genre Pseudoclanis Rothschild (Lepidoptera, Sphingidae)". Bulletin de la Société entomologique de France. [Bulletin of the French Entomological Society]. 197 (3): 281–296.
The wingspan is about 65 mm for males. The forewing upperside is very similar to Pseudoclanis postica but with a broad, dark marginal band. The hindwing upperside is bright yellow with a very straight median line.
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