My career as an insect physiologist has progressed through the stages of (a) classical endocrinology and (b) peptide chemistry to my current interest in (c) learning and applying the tools of molecular biology. This work may advance the understanding the evolution of regulatory peptides and the genes encoding them, and lead to development of biorational pesticides in agriculture. We will first isolate genes coding for specific peptides (called allatostatins and allatotropins) that are crucial to insect reproductive success using my model system that is highly amenable to student training. Thus, this work will also provide students with opportunities to propose hypotheses, then apply contemporary techniques of molecular biology to test their hypotheses. I anticipate that results will be presented regionally, nationally and internationally, and will be submitted for publication in peer-reviewed journals.