Megalomyrmex adamsae queen and workers. This species is a social parasite that inhabits the nest of Trachymyrmex fungus-growing ants. Panama; captive colony at the University of Texas

Melissotarsus weissi, queen (right) and worker. Kibale Forest, Uganda

Monomorium sydneyense queen and workers in the brood nest. Yandoit, Victoria, Australia