Research Scientist Agriculture and Agri-Food Canada Ottawa, Ontario, Canada
The rove beetle tribe Quediini is a hyperdiverse group of predators occurring in a variety of microhabitats in the forests, wetlands, alpine zones and grasslands of the northern hemisphere. Deeply sampled phylogenomic analyses have recently illuminated major lineages and indicated that most of the genera and subgenera are not monophyletic. As lumping such morphologically diverse taxa together into one or two genera would create impractical diagnoses, a generic revision and morphological survey for new characters are greatly needed. This presentation will provide an overview of the ongoing revision as it relates to the fifteen putative genera of the Nearctic region and places them within a biogeographic context using divergence dating analyses. The Nearctic fauna includes a mixture of ancient, species-poor taxa that can be found just outside of the conference centre, and more recently diverged diverse groups. The modern fauna is the result of numerous trans-Beringian dispersals across geological time and in parallel across lineages. More recently, human-mediated dispersal has resulted in a number of adventive species.
