THE FEMALE SEX PHEROMONE GLAND OF THE ARTICHOKE PLUME MOTH, PLATYPTILIA CARDUIDACTYLA (RILEY) (LEPIDOPTERA : PTEROTOPRIDAE)

SIRIWAT WONGSIRI

Summary: Female adults of Platyptilia carduidactyla (Riley) have a pair of sac-like structure of glandular epithelium situated dorsally between the 8th and 9th segments. It is likely that the female sex pheromone is produced by this gland because it is similar in structure and location to the gland in the spruce bud worm, Choristoneura fumiferana (Clem), which has been shown experimentally to be the source of the female sex pheromone. Using a scanning electron microscope, this gland was studied in relation to the mode of release of the sex pheromone

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Department of Biology, Faculty of Science, Chulalangkorn University, Bangkok.

Received 30 March 1976