Abstract

Insects of several orders (mainly Lepidoptera) gather alkaloids independent of feeding behaviour. By storing these secondary plant metabolites, the insects gain protection from predators, and in various species the plant chemicals are used as precursors for the biosynthesis of male pheromones; in Creatonotos they even regulate specifically the development of the androconial organs. The variety of aspects involved in this link between chemical defence and sexual communication, as well as its consequences, are discussed.

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