Understanding the processes that generate and maintain biological diversity and how these interact with landscape history is a central theme in biogeography and evolutionary biology. Information across the whole spatiotemporal spectrum at which these processes take place is also necessary to preserve biodiversity at its different levels, from ecosystems and communities to unique intraspecific evolutionary processes. The study of recent evolutionary radiations is particularly attractive to address these questions because the signatures of such events have not been fully erased by time and thus provide the potential to infer processes from patterns in genetic data. The goal of this project is to integrate next generation sequencing (NGS) techniques, detailed phenotypic information and spatial modelling to unravel the factors promoting recent evolutionary radiations and infer the underlying evolutionary processes behind spatial patterns of genetic, ecological and phenotypic divergence. This project will use as model a species complexe of montane grasshoppers of the genera Omocestus (subgenus Dreixius) to understand the consequences of past climatic changes and the role of geography, environment and adaptation processes in species diversification phenomena and regional and local intraspecific patterns of genomic variation.