Coevolutionary divergence in tight mutualisms

Obligate relationships between prodoxid moths and their host plants are among the best-studied examples of coevolution in nature. The moth Greya politella simultaneously pollinates and lays eggs into the flowers of its Lithophragma host plants (Saxifragaceae). we study the evolution of floral scent variation, and its importance for interaction specificity and population and species divergence among both the plants and the insects. Further, we compage the impact of selection from the specific mothpollinators with the evolutionary generalized co-pollinators at various geographic scales