Opsiphanes sp. and looks like Opsiphanes tamarindi. I was sceptic about Tamarindi being in Brazil. But then I found a picture of Tamarindi from Brazil and a caterpillar with ID Tamarindi. I am not 100% sure about other reports from Brazil. Please, verify yourself and probably earlystages can confirm or correct.
http://www.projectnoah.org/spottings/9342475
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