re: What happened to these wasps?

Why aren't they burning? They should be burning.




As for what happened to them, a type of "mind controlling" fungus. Basically the fungus develops inside the wasp and when the time is right, modifies the wasp's behavior so that it becomes more conducive to spreading the spores of the fungus. Basically that fungus caused the wasps to cling to the nest (elevated area) before killing them where the spores would spread easier. Cordyceps species that infects ants and turns them into "zombies" too.