Castle Exterminators
Pharaoh Ant (Monomorium pharaonis) identification infographic showing size, habitat, behavior, risk, and control
Moderate concern

Pharaoh Ant

Monomorium pharaonis

Size
1.5–2 mm
Category
Ants

About the pharaoh ant

Pharaoh ants are one of the trickiest indoor ant species to control. They are tiny, pale yellow, almost translucent, and form colonies with multiple queens. If you spray them with a repellent insecticide, the colony 'buds' — splitting into several smaller colonies that spread further through your home. Pharaoh ants prefer warm, humid indoor spaces and are a notorious problem in hospitals, hotels, apartments, kitchens, and bathrooms where they can contaminate sterile surfaces and food.

Quick ID

1.5–2 mm pale yellow to light tan body with darker abdomen; almost translucent.

In the Triangle

Encountered year-round indoors across the Triangle, especially in apartments, restaurants, and older buildings.

Think you have pharaoh 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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