Pharaoh Ant
Scientific Name: Monomorium pharaonis
Order & Family: Hymenoptera: Formicidae
Size: Workers are very small, approximately 1.5 to 2.0 mm (about 1/16 inch) in length.

Natural Habitat
Widely distributed indoors in temperate regions; typically found in heated buildings near moisture sources like kitchens, bathrooms, and laundry rooms.
Diet & Feeding
Omnivorous; they feed on a wide variety of foods including fats, proteins, and sugars, often seeking out sweets, grease, and dead insects.
Behavior Patterns
They form large multi-queen colonies and exhibit a behavior called 'budding,' where a group of workers and a queen leave the main nest to start a new one, making them difficult to control with traditional sprays.
Risks & Benefits
Regarded as a major nuisance pest; in hospitals, they can spread pathogens such as Salmonella and Streptococcus as they crawl over surfaces and medical equipment.
Identified on: 2/13/2026