wingspan :
for many reasons we maintain Archonias tereas and A. negrina as distinct species.
Archonias negrina cutila flies in Northern Ecuador, we saw it near Tena.
it looks pretty much like Archonias negrina negrina that flies farther South.
see https://www.andean-butterflies-mapping-the-phenotypes.eu/archonias-brassolis/
on the individual variation page, a slightly aberrant specimen from Jatun Sacha and found in the INABIO.butterflies collection.