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Morpho helenor
I have seen some photos of this black butterfly with bright blue stripes but i couldn't find any species indication. It is also possible to see the underpart of the butterfly with several "eyes"
Amazonian rainforest
It is true the middle photo was from another individual, I did not noticed but now it should be correct since it is possible to see that the cut in the back part of the wing is the same for both photos and so the same individual !!
Please, make separate spotting for every species you got. It seems that not all are the same. SO, it would be possible to make an ID. Plesae, carefully check which upperside belongs to the underside. They are all Morpho sp. from Nymphalidae.