Isognathus excelsior is a moth of the family Sphingidae.
^"CATE Creating a Taxonomic eScience - Sphingidae". Cate-sphingidae.org. Archived from the original on 2012-11-11. Retrieved 2011-10-19. This article incorporates text from this source, which is in the public domain.
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Isognathus species by the pure white underside to the abdomen with conspicuous paired black spots on each segment. Isognathusexcelsior ♂ Isognathus excelsior...