The genus Monomorium includes small to medium-sized ant species that are distributed worldwide. Monomorium ants are known for their ability to adapt to different environments and can therefore be found in a variety of habitat types, including urban areas. These ants are active foragers and often specialize in a variety of food types, including nectar, seeds, and small insect prey. They are a popular species for ant keepers due to their ability to form compact and often visible colonies, making it easy to observe their behavior.