Pharaoh Ant

Scientific Name: Monomorium pharaonis

Order & Family: Order: Hymenoptera; Family: Formicidae

Size: Workers are very small, approximately 1.5 to 2 millimeters (about 1/16th of an inch) in length.

Pharaoh Ant

Natural Habitat

Widely distributed worldwide; typically found nesting in well-protected, warm humid areas such as wall voids, behind baseboards, and near kitchen or bathroom heating pipes.

Diet & Feeding

Omnivorous and opportunistic; they feed on sweets (syrup, jelly), proteins (meats, grease, dead insects), and fats.

Behavior Patterns

Known for 'budding,' where a portion of the colony moves to a new location to start a satellite nest. They are primarily nocturnal and create expansive foraging trails.

Risks & Benefits

Considered a major indoor pest. They can transmit pathogens like Salmonella and Streptococcus, making them a significant health risk in hospitals and food service areas. Benefits are minimal besides basic decomposition in the wild.

Identified on: 4/16/2026