Abstract

The eversible vesicles of the sex pheromone glands consist of three cell types, secreting the cuticle, the duct and the pheromone, respectively. Each pheromone-secreting cell has an end apparatus, bounded by microvilli and lined by a granular mass, that is penetrated by remarkable elongate filaments extending far up into the secretory duct. Vesicles containing secretion or secretion precursors abound. The possible role is discussed of the various organelles in the elaboration and transport of the pheromone.

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