It only exists in South America especially in Brazil - known as Caligo Brasiliensis. It is known as "Borboleta-coruja"/ "Owl-butterfly" because the insight-out of it's wing mimics an owl to confuse it' predators.
There are more butterflies with amazing mimetic shapes and I'll publish more of them.
Nature is wise and should be respected but human beings are far from respecting it's own species. I hope nothing happens in the environment making the wonders of nature disappear.
Image Source: Rede Ambiente, Wikipedia.