wingspan : 80/90 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.
these butterflies are Prepona laertes (no subspecies), a species that flies from Costa Rica to Argentina and the Guyanas.
it is a highly variable species; we found it at rio Pastaza, rio Shankaime, near Puyo, Macas and Sucúa.