Banded sugar ant 20 cm (8 in) in diameter and usually funnel-shaped and ephemeral. Mounds are not constructed in undisturbed regions where land degradation has not occurred. Instead, the entrance of a nest consists of a smooth-walled vertical shaft that is in diameter. Chambers in the nest have a similar appearance to the nest entrance (shaft-like walls), and the floors within the chambers are typically in length with an arched roof that is in height. Excavated meat ant nests show that banded sugar ants will also inhabit them. Banded sugar ants are the dominant group of nocturnal ants in their range. Workers are
Carpenter ant an individual carpenter ant to be recognized as a nestmate, it must, as an adult, go through specific interactions with older members of the nest. This process is also necessary in order for the ant to recognize and distinguish other individuals. If these interactions do not occur in the beginning of adult life, the ant will be unable to be distinguished as a nestmate and unable to distinguish nestmates. Recognition allows for the presence of kin-specific interactions, like kin altruism. Altruistic individuals increase other individuals' fitness at the expense of their own fitness. Carpenter ants perform altruistic actions toward their