wingspan :
for this Magneuptychia pictured by Chun Yi Liu at Jatun Sacha we see two possibilities :
- if the butterfly is actually bluish, it probably is a species known but undescribed close to M. louisammour,
- if the bluish color comes from the lighting, then it should be M. opima.
the second picture, by Rudy Gelis at Limoncocha, seems to be the same species.