Dark Rover Ant

B. patagonicus is native to South America, and more specifically Argentina and Paraguay. It has been introduced in multiple parts of the world including the United States, Asia, and parts of Europe. In less than 50 years after the introduction of the species into the United States, members of B. patagonicus are now commonly found in 14 states ranging from North Carolina to California. B. patagonicus commonly form their colonies in the soil, at bases of trees, in leaf litter, piles of wood, and trash piles. In southern areas of the United States, colonies are found in both natural and disturbed areas but are more prevalent in areas near human activity. In landscaped areas, they are commonly found in mulch and man made structures. Laboratory studies have shown that B. patagonicus have a preference for moist environments

Few studies have been conducted on the diet of B. patagonicus but it has been observed in nature that this species visits extrafloral nectaries for nectar. Another theory suggests that a major part of their diet is honeydew from hemipterans. In Laboratory settings, an artificial diet containing 30% honey solution, liquid tuna mixture, and caterpillar pieces was observed to support B. patagonicus.