Mariposa

Sorry, looks like the sarcastic was me in the end (I'm out of practice in english writing).

The butterfly was alive, maybe not very healty but definitively alive.

Thanks for the ID.

According to your comment it was obviously a dead and not freshly hatched one which would have need such assistance. I would never be sarcastic in the case of a dead animal. I just noticed the intense colors and some kind folded wings. Maybe it is helpful you add in the notes that it is a dead animal.

jordi.lovely black and yellow!

That was sarcasm?

Pieridae/White, Catasticta teutila. Nice spotting, obviously a very fresh one.