Argentine Ants are native to Argentina, Brazil, and Uruguay and were probably introduced to New Orleans via coffee ships from Brazil in the late 1800’s. You can find these ants in colonies located in moist situations near a food source. These colonies can have a few hundred to several hundred thousand workers and many queens.
Argentine Ants, when found indoors, usually nest near a moisture source such as water pipes, sinks, potted plants, etc. The workers follow regular trails when foraging, and winged queens can sometimes be found among trailing workers.
Argentine Ant Feeding Habits
They prefer sucrose-containing sweets but will increase their intake of protein-containing foods such as prey during the spring and summer. When found outdoors, these ants typically live in shallow nests about 8” deep located in moist situations such as under boards and stones, beneath plants, along sidewalk, etc. When it is too wet or too dry for them to live outdoors they will invade buildings in large numbers.