The fossil Lithopsyche was long assigned to the Boarmiini, but more recently a restudy indicated that it is actually a misidentified true butterfly (Papilionoidea).
Prodryas, from the end of the Eocene, can be quite robustly assigned to the Nymphalidae, and is in fact quite likely a member of the Nymphalini.
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Taken together, these fossils place the origin of the Papilionoidea in the latest Mesozoic or early Paleogene, while the extant families emerged approximately the early Eocene onwards.
burchellanus is a rare species or, if it is a subspecies, Evolutionarily Significant Unit, of butterfly (Lepidoptera, Papilionoidea) that lives in a very few areas in central Brazil.