Tandem running

Tandem running is a method of recruitment used by some species of ants, such as Temnothorax albipennis, to lead nestmates to food. It is dissimilar to other recruitment strategies used by social insects such as pheromone trails, in that ants using tandem running can recruit only one worker at a time. During a tandem run, the worker leads the recruit, which maintains contact with the leader using her antennae.