Pharaoh Ant
Scientific Name: Monomorium pharaonis
Order & Family: Order: Hymenoptera; Family: Formicidae
Size: 1.5 - 2 mm (approximately 1/16 inch)

Natural Habitat
Typically found indoors in climate-controlled environments; nests in wall voids, under flooring, and behind baseboards.
Diet & Feeding
Omnivorous; feeds on proteins (meats, insects), fats, and sweets (syrups, fruit).
Behavior Patterns
Forms large, multi-queen colonies. Known for 'budding,' where a subset of the colony splits off to form a new nest if the original is disturbed or stressed.
Risks & Benefits
Risk: Major nuisance pest indoors; can contaminate food and is known to spread pathogens like Salmonella and Streptococcus in hospital settings. Benefit: Negligible in indoor environments.
Identified on: 2/17/2026