What ant bites but does not sting?

All ants are in the family Formicidae, which simply is Latin for "ants". Some ants are in a part of the Formicidae family called the subfamily Formicinae. None of the Formicinae have proper stings, but thay all bite if you bother them. Many of them produce lots of formic acid, and often will squirt it into the places that they bite. An example of an ant that does not sting is the weaver ant, which bites powerfully and squirts formic adid.

There are other subfamilies though; some of them also just bite, but others, like many of the Myrmicinae will bite, but also have a powerful poisonous sting. One example is the fire ant, Solenopsis invicta. Another is the bearded harvester ant, Pogonomyrmex barbatus, which has a very poisonous sting. Other poisonous stinging ants include the subfamily Ponerinae, and the bullet ant subfamily, Paraponerinae.