Mounds or hills that these insects construct resemble small mountains and serve as protection for the queen who lays eggs at the base of this structure. There is a tunnel that connects the chambers and in the center of these chambers rests the queen. The mounds provide insulation, and the chambers provide warmth for the eggs.
These mounds may reach up to two feet tall with a base diameter of two feet. The hard coating covering these mounds is hair and dry mud, creating a barrier from rain and excessive sunlight. These insects often share their nest with certain species of ants.