The Little Black Ant (Monomorium minimum) is jet black, shiny and typically measures 1/16 inch. The little black ant (Monomorium minimum) is one of the smallest ant species in North America, with workers measuring just 1/16 inch. Despite their tiny size, they are persistent and prolific househol.

The Little Black Ant is generally low-risk, but caution is still advised. No sting; not medically dangerous. Food contamination. Can be difficult to eliminate due to multiple queens and diverse nesting sites.

In Arizona, little black ants are most often encountered in the following situations: Tiny jet-black ants in well-defined trails, especially in kitchens and bathrooms. Nests in soil near the foundation, under rocks, or in wall voids. Foraging trails along baseboards and countertops.

The Little Black Ant is most active during: Year-round; most active spring through fall. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.

Seal entry points. Store food in sealed containers. Eliminate moisture sources. Treat perimeter regularly.

Non-repellent bait along active trails. Perimeter spray treatment. Crack and crevice applications for wall-void nesting.

Most store-bought ant sprays kill only the workers you see, while the queen and colony remain protected underground. Effective Little Black Ant control requires baiting or targeted colony treatments that workers carry back to the nest. Pest Control Bros uses professional-grade products and application methods that address the entire colony.