6533b7d3fe1ef96bd126157d

RESEARCH PRODUCT

Evidence for sex pheromones produced by males and females inBlatta orientalis (Dictyoptera, Blattidae).

Jean Pierre FarineRémy BrossutDehbia Abed

subject

CockroachbiologyCourtship displayBlattidaeZoologyDictyopteraGeneral MedicineAnatomybiology.organism_classificationBiochemistryMating callSex pheromonebiology.animalPheromoneSex organEcology Evolution Behavior and Systematics

description

Males and females ofBlatta orientalis produce a volatile sex pheromone attractive at a distance. The male initiates courtship behavior by adopting a calling posture while emitting his sex pheromone. He exposes the anterior region of his tergites by stretching his abdomen horizontally. Morphological observations show the existence of male tergal glands on the anterior region of tergites 1 to 8. Behavioral assays of females utilizing methylene chloride extracts of various male body parts reveal that extracts of the anterior region of tergites are highly attractive and induce more positive responses that any other body part. Once near the male, the attracted female opens widely her genital atrium thus exposing her atrial glands. Behavioral assays reveal that these atrial glands are certainly the site of production of the female sex pheromone.

10.1007/bf00980586https://pubmed.ncbi.nlm.nih.gov/24248779