Firefly mimic Longhorn beetle

Back in Hemilophini - think I got the right one: Elytral plica, pronotal spines, pattern (not well seen in collection specimen), + range (SE Brasil, RJ-PR, acc. to catalogue).

mimics in Calliini lack the elytral plica: http://www.coleoptera-neotropical.org/paginas/2_PAISES/Brasil/Cerambycidae/lamiinae-Calliini-brasil.html

Best adress to look for Lampyrid mimics is Hemilophini: http://www.coleoptera-neotropical.org/paginas/2_PAISES/Brasil/Cerambycidae/lamiinae-Hemilophini-brasil.html but this time, I think, it's wrong. Note pronotal spines . . .

Sergio, look how much your Cerambycid looks like a Lampyrid! http://www.projectnoah.org/spottings/1997356002/fullscreen

Sergio, tell us a little bit about this beetle! It's beautiful!

This is amazing! It seems to be mimicking a Lightening Beetle (Lampyridae).

Great image, Sergio! Keep 'em coming!