Author： KHASIMUDDIN SYED DEBACH PAUL
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.68, Iss.5, 1975-09, pp. : 893-896
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Abstract
Behavioral evidence of the presence of a male sex pheromone in species of Aphytis has been gathered by bioassaying live males and females in the laboratory. The range of effectiveness of such a pheromone has been estimated from laboratory experiments as being ca. 20 mm from the releasing male. It has been demonstrated that the male pheromone is strongly species specific and can be perceived only by conspecific females, having no effect (behavioral) on females of other species. It has also been demonstrated that successful mating takes place only as a result of an interplay of the sex pheromones of both the sexes. The role of these sex pheromones in maintaining reproductive isolation among related species in parasitic Hymenoptera is emphasized. This is the first report of the behavioral role of a male pheromone, acting like an aphrodisiac, in parasitic Hymenoptera.
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