Proformica nasuta is a monogynous ant species with a colony size of up to 1000 workers. They have a medium development rate, with queens measuring 9-11 mm and workers measuring 3-10 mm in size. The ants are dark brown in color and their diet includes food insects, syrup, and fruit. They thrive in arenas with a humidity level of 60-80%, while their nests require a humidity level of 60-70%.