The Messor bouvieri ants exhibit a high degree of polymorphism, with major workers reaching sizes almost comparable to that of the Queen.
Claustral ant species: (do not feed the Queen until first nanitics)
Colony Form: Monogynous (one queen per colony)
Colony Size, Lifespan and ants' size:
Consists of over 10,000 workers
Queen's lifespan: Up to 15 years
Queen's size: Ranging from 15mm to 18mm
Worker ants' size: Ranging from 3mm to 14mm
Humidity: outworld: 40-50%; nest: 60-70%
Temperature: outworld: 24-30°C; nest: 21-27°C. It would be best if you used a heat mat.
Feeding: Give the young colonies and founding queens more protein jelly and honey, while established colonies with 50-100 workers can be fed seed mix.
How to feed them and how much? 
So the golden rule is 1 seed per ant per month. Feed them every two weeks (half dosage, for instance: 30 ants = 15 seeds every two weeks). The first feeding dose must be doubled. Keep an eye on their food storage so they always have one nest’s chamber full of seeds.
Hibernation: To remain healthy, your queen and worker ants require proper hibernation during the winter months, but it's not a must during your ant colony's first year. The Messor Barbarus ants hibernate through the winter starting at the end of November and wake up around late February/early March. To hibernate, the temperature of the nest needs to be reduced to around 15 degrees Celsius, which is not too cold for the ants to survive.
 
Messor bouvieri ants transport the seeds along their trail pathways back to the nest, sometimes spanning a distance of up to 200 feet in the wild. Once collected, the ants consume the harvested seeds by using their larger mandibles to remove the shells. These seeds are then chewed into a nourishing food source called "ant-bread." The ants derive 90% of their nutrients and nearly all of their water from this antbread.
Their water needs are mostly met through the consumption of seeds and insects. Honey is only accepted as a source of moisture when water is scarce.