Myrmecocystus mexicanus is a species of ant that forms monogynous colonies with a size of 10,000 workers. They have a medium development rate and the queen is 14-16 mm in size while workers are 5-10 mm. The ants are orange-yellow in color and their nutrition consists of food insects, fruits, vegetables, and seeds. They require a humidity level of 40-60% in both the arena and nest, and the temperature in the arena should be maintained accordingly.