Spotting

Interesting observation. Usually leafhopper do not have antennae. But if you look very careful this is wrong! They have indeed some antennae, sometimes only very thin and very short, sometimes even longer ones. But I haven't seen such ling antennae in a leafhopper and never black ones. So I am not sure if this one is actually some kind of a leafhopper nymph (or spittlebug nymph). But I also would tend to a nymph of any kind of an insect. And Brazil is always good for suprises!