associated_with_behavior Semiochemical gland Dufour's gland SIBO:0000261 Patrollers influence foraging direction by depositing chemical secretions on the nest mound. Scout the nest mound with their abdomens tucked under their bodies (Gordon 1991). The secretions from the poison gland and the Dufour's gland exit from the stinger apparatus located in the abdomen. Dufour's gland secretions have been implicated in a variety of functions, including being territorial markers and propaganda pheromones used by parasitic ants. In Pogonomyrmex, Dufour's gland contents are composed mainly of species-specific blends of hydrocarbons. Poison gland secretions have been shown to act as sex pheromones and trail pheromones in ants. sibo Patrolling Trail Discrimination