wingspan : 53/58 mm
for many reasons we maintain Archonias tereas and A. negrina as distinct species.
Archonias negrina cutila flies in Northern Ecuador, we saw it near Puyo and Palora.
it looks pretty much like Archonias negrina negrina that flies farther South.
see https://www.andean-butterflies-mapping-the-phenotypes.eu/archonias-brassolis/