Bug Identifier
Pharaoh Ant
Community identification

Pharaoh Ant

Monomorium pharaonis

Order & Family
Hymenoptera: Formicidae
Size
1.5 to 2.0 millimeters (very small)
See this bug in the Encyclopedia

Natural Habitat

Widely distributed throughout the world. Prefers warm, humid indoor environments like kitchens, bathrooms, and hospitals.

Diet & Feeding

Omnivorous and opportunistic. Consumes sweets, fats, proteins, and other insects. In hospitals, they are known to feed on blood or wound secretions.

Behavior Patterns

Form large, multi-queen colonies. They do not swarm; instead, they expand through 'budding,' where a group leaves to start a new nest. They are highly persistent and can travel through electrical wiring and plumbing.

Risks & Benefits

They are a major nuisance pest and a significant health risk in medical facilities as they can mechanically transmit pathogens like Salmonella and Streptococcus. They provide minimal ecological benefit in human-occupied structures.