Fulgora laternaria is a lanternfly commonly known as the Peanut head bug, because its head resembles a peanut.
The peanut head is probably some sort of mimicry, although I just don't see it. It works in conjunction with the eye like markings on their hind wings which they display when they are threatened.
The peanut head bug is endemic to the Amazon.
Species: Fulgora laternaria