A genus of harvester ants: Included in Pogonomyrmex are ants that attack humans and small animals, and also known as "bearded ants".

A genus of harvester ants that are economically important in agricultural areas of the United States and Mexico because of the numerous low, bare mounds they construct, which reduce vegetation for grazing animals.

They have a painful bite which can be seriously poisonous when they attack animals or humans in large numbers. Some species serve as intermediate hosts of helminths. It is believed that various pathogens may also be passively carried by these ants.