A worldwide community photographing and learning about wildlife
Morpho helenor
This is the big Blue Morpho butterfly, without pictures from the blue side :>).
Unfortunately Morpho peleides or correctly Morpho helenor peleides is not found in Brazil. There are at least 21 Morpho sp. in Brazil, even 8 Morpho helenor subspecies and 5 Morpho menelaus subspecies. From the wing shape and specific markings/pattern you can kick out some:
It is NOT: Deidamia, Uraneis, Rhetenor, Portis, Cisseis, Achilles, Menelaus, Hercules, Richardus, Absoloni. Then you can kick out each of the white Morphos. At the end and most probably it is Morpho helenor xy, however, NOT Peleides. Without an open wing shot you can't get closer.