The queen of this species measure about 4 mm, while the girls were about 2 mm long and the male measures about 2.8 mm. The queens are red-brown hue, while workers have a color yellowish-red.
Pharaoh ants are omnivorous, feeding on sweet foods such as juice, honey and jam, but can equally well be nourishment of food rich in protein, like cheese, meat and certain insects.
The pharaoh ants moved into the house when they find a warm and humid, they are opportunistic, settling in places as unusual that a pot of houseplant.
Unlike carpenter ants, pharaoh ants mate in the nest. The abdomen of the queen has a sclerotized, small pocket, which contains sperm. This small container produces nutrients that keep the seed alive, so the queen can lay about 400 eggs during her life without having to mate again.