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Viviennea sp.
Hey Sergio! This appears to be a Viviennea sp. moth, found in the tropics of Central and South America. At first, I was thinking Viviennea moma, which is pictured in the link in my suggestion, and the first two links below, but notice how the lower yellow line is lower in your photo, which I think suggests a separate species. I could only find Viviennea moma as a similar species in Brazil, but there may be more species that have not been fully documented on the internet.
http://www.flickr.com/photos/andreaskay/...
http://www.flickriver.com/photos/andreas...
http://www.boldsystems.org/index.php/Tax...