Jupoata... Francesco, especially the colour troubles in this case. Among the large south American Cerambycini only very few items have such yellowish elytra. Could it be some immature form? I will contact the colleague in Mexico who sent me this specimen; perhaps he has more of it.
In order to identify the genus (once, according to me more correctly, subgenera of Brasilianus), it is necessary to observe the shape of the spine of the antennomere III. Here, it seems to me analogue to those of Jupoata.