Thoas Swallowtail (Heraclides
Mindo Road, Ecuador
Giant Swallowtail (Heraclides
comparison. Jesus Garcia points out that the Thoas has 4 marginal spots on
the trailing edge of the forewing; whereas the Giant has only 3.
Southern US to central Argentina; all habitats; HP Zanthoxylum,
Esenbeckia, Ruta and Citrus. (T)