The ant species is one of the most common pest in Arizona. In fact, there are more ant species that call Arizona home than any other in the United States. Most live in the desert and in fields far from urban areas and rarely will venture into homes. Those ant species that live in urban areas enter homes looking for food, but generally make their homes outside and underground.
While most ants are not considered dangerous, some species are aggressive and territorial. One bite won't do much harm to a human, but several hundred bites can leave red itchy welts that can cause scarring and/or discoloration of the skin. Those with allergic reactions to ant bites should be especially aware of them in and around the house.