Camponotus pseudoirritans is a monogynous ant species with colony sizes of up to 5000 workers. They have a medium development rate. The queen is 11-14mm in size, while workers range from 5-8mm and majors from 7-11mm. Their coloration includes dark brown/black heads, brown to yellowish chests, and an orange-brown bottom. They are primarily carnivorous, feeding on insects like cockroaches and crickets, as well as syrup made from a honey-water mixture.