wingspan : 77 mm
until very recently the taxonomy of Prepona laertes made no sense ; but a new review by Dayana Bonfantti (Universidade Federal do Paraná - Fevereiro 2014) seems to clarify things.
this butterfly is Prepona laertes (no subspecies), a species that flies from Costa Rica to Argentina and the Guyanas.
this record from Lita seems to be the first one West of the Andes ; it requires further confirmation.
the picture below, taken in 2021 by David Geale near Pedro Vicente Maldonado, is a confirmation.