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Thief Ant



Thief Ant

Pest Stats


Pale yellowish to light or dark brown




Unevenly rounded, thorax lacks spines


1.5 mm – 2.2 mm long – one of the smallest household ant species




Throughout most of the United States


Thief ants are attracted to greasy and high-protein foods such as seeds, nuts, oils, animal fats, dairy products, breads, meats, fruits, and other insects. They can survive and build nests anywhere. Colonies can have anywhere from a few hundred to thousands of members. Colonies have several queens and they can lay between 37-387 eggs per day. Swarming begin in late July and end in early fall and mating takes place while flying.


Outside thief ants can nest in rocks, logs, rotten wood, tree cavities, and in trash. Inside, thief ants nest in small crevices of floorboards, kitchen sink, cabinet areas, and under countertops. They will enter structures during hot weather in search of food and travel from room to room on wires.


Thief ants are a threat to humans. Because they forage for dead insects, rats, and rodents outside, when they enter your home, they may carry disease-inducing organisms and contaminate your food sources. They have also been linked to possibly be a host for the poultry tapeworm. Thief ants have small stingers but are not strong enough to pierce human skin or cause much pain, over the counter remedies should be effective in most cases. More sensitive individuals should see medical attention.

Thief Ant Prevention

If you suspect a thief ant infestation, call A-1 Bonded Termite, Inc. for a free inspection* immediately. This is the safest and most effective way to get rid of thief ants. Your inspector will make recommendations to eliminate the infestation and make suggestions on how to correct conditions that may be conducive to re-infestations.

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