Messor galla is a monogynous ant species with colony sizes of up to 10,000 workers. They have a medium development rate. The queen is 14-17mm in size, while workers range from 4-9mm and soldiers from 8-12mm. Their head and back are dark burgundy, with the rest of their body being dark in color. They primarily feed on plant seeds, food insects like cockroaches and crickets, as well as fruits and vegetables.