Hellow friends: Since any body answered to me, then now I know the name !!!:
Psygmathocerus wagleri Perty, 1828.
The other species (from Southern South America) is Psygmathocerus pubescens Bruch, 1926, this last species has the hairy pronotum, and the other species is from Northern South America: Psygmathocerus guianensis Tavakilian & Monné, 2002.