Scutelleridae, looks like being a rarer color morph of Pachycoris torridus. Something between F and G morphs from the link above and this one:
http://www.scielo.br/pdf/ne/v33n1/19404.pdf
http://www.scielo.br/img/revistas/ne/v33n1/19404f1e.jpg
http://www.scielo.cl/pdf/rchnat/v85n3/art11.pdf
Please, verify!!
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