Big-headed ants are another invasive ant species that can cause serious problems for homeowners. It is believed that these ants originated from Africa, but can be found throughout most of the world, especially Australia and the United States. These yellowish or reddish brown ants are fairly large in size compared to other ant species and have a disproportionately large head, hence its name.
Like most ants, they enjoy sweet foods, especially honeydew from aphids which they also gather and protect. Like the Argentine ant, big-headed ants have multiple queens and form massive colonies. High concentrations of these ants are often found around areas with high aphid populations.