Most "acorn ant" species are less choosy about nesting site than their name suggests. This colony set itself up in a narrow crevice between two flat stones. Visible here are all components of a mature ant colony: queens, workers, a single male, and brood in varying stages of development. South Bristol, New York, USA.
polygynymultiple queensant colonyeusocialityant coloniesacorn antsTemnothoraxmyrmicinaequeen antsFormicidae