Castle Exterminators
Little Black Ant (Monomorium minimum) identification infographic showing size, habitat, behavior, risk, and control
Low concern

Little Black Ant

Monomorium minimum

Size
1.5–2 mm
Category
Ants

About the little black ant

Little black ants are among the smallest household ants you'll encounter — a tiny, shiny jet-black ant that forms long foraging trails between outdoor nests and indoor food sources. They're opportunistic omnivores: sugar, grease, meat, dead insects — anything available. Colonies have multiple queens, which makes them resilient and quick to re-establish if you only spray the workers you see. They typically nest in rotting wood, brickwork, masonry voids, wall cavities, and under stones.

Quick ID

1.5–2 mm jet-black shiny body; among the smallest household ants.

In the Triangle

Frequently found nesting in older Durham brick foundations and stone garden walls.

Think you have little black ants?

Free inspection from a licensed Castle Exterminators technician — Durham, Chapel Hill, Raleigh, Cary & the Triangle. We'll confirm the species and recommend a treatment plan.

Request Free Inspection (919) 606-8686

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