These small yellow or brown ants are notorious pests, especially in hospitals. They are typically about 1/16th of an inch long, and have non-functional stingers which generate pheromones. Because these ants can create “budding” colonies quite easily, they can infest an office space within six months, even pushing out other insects. It can be challenging to eradicate them due to their ease of reproduction. Call Burns before these troublesome pests can get a good foothold in your property.