Evidence for male- and juvenile-specific contact pheromones of the common bed bug Cimex lectularius
2007
Siljander, Eric | Penman, Dan | Harlan, Harold | Gries, Gerhard
Males and females of the common bed bug, Cimex lectularius L. (Heteroptera: Cimicidae), have been shown to produce and respond to an aggregation pheromone. We tested whether juvenile C. lectularius also produce and respond to aggregation pheromone, and whether the pheromone is perceived by contact chemoreception. In dual-choice laboratory experiments, juveniles, but not males or females, preferred juvenile-exposed paper discs to control discs. Unlike juveniles, males and females preferred male-exposed paper discs to control discs. Neither juveniles, males, nor females preferred female-exposed discs to control discs. When test stimuli were inaccessible, C. lectularius failed to show any preference. Male- and juvenile-specific contact pheromones may have contrasting functions of marking shelters as safe refugia for development and growth (juveniles) or mate encounter (adults), but result in the same phenomenon, the aggregation of conspecifics.
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