Bullet Ant
Paraponera clavata
The pain caused by this insect’s sting is greater than that of any other Hymenopteran, and is ranked as the most painful according to the Schmidt Sting Pain Index. It is said that it takes a full 24 hours for the pain to recede. A paralyzing neurotoxic peptide isolated from the venom is poneratoxin.

Fortunately, bullet ants are not aggressive except when defending themselves or their colony.

Bullet ants are used by some indigenous people in their initiation rites to manhood . The ants are first knocked out by drowning them in a natural chloroform, and then hundreds of them are woven into sleeves made out of leaves, stinger facing inward. When the ants come to, boys slip the sleeve down onto their arm. The goal of this initiation rite is to keep the sleeve on for a full ten minutes without showing any signs of pain. When finished, the boys’ (now men) arms are temporarily paralyzed because of the venom, and they may shake uncontrollably for days.