has two different sizes of workers the normal minor worker ants and a very impressive sized solider ants with large heads. They are quite an aggressive ant and work on numbers in over powering their food. They are distributed through Southeast Asia, from Japan, Vietnam, Java, India and Sri Lanka. The nest area for should be fairly humid and this also goes for the Arena area too. This species of ant can be kept at a good room temperature, however an additional heat spot is highly recommended. This species can have more than one Queen per colony. Unusually for this Genus, this only produces a few 1000 workers in the wild. A well established Queen and colony can number up to 3000 worker ants.