Geeefly
A large insect with a six-foot wingspan, appears to be a cross between a wasp and a dragonfly. Capable of spitting a powerful corrosive acid from its eyes, which it then uses to digest the prey and cleaning out said eyeballs. The Geeefly lives in the Amazon Rainforest and there are numerous recorded attacks on humans. Several were fatal.
The Geeefly projected the acid onto the man, who then went into convulsens and was rapidly consumed.