Individually discriminable recruitment trails in a ponerine ant

Pheromone trails are associated with the recruitment of nestmates to food i ants. After discovery of a liquid food source, such as nectar, Paraponera clavata workers lay trail from the resource site to the colony. If a worker lays trail to the dolony entrance but does not enter the colony, her trail is not followed by other ants. When two workers are induced simultaneously to lay trail to the colony entrance and only of the workers is allowed to enter the colony, recruited ants follow only the trail of the ant that enteced the colony. This indicates that individual trails can be distinguished by recruited workers.