Roy J. Beckemeyer created these informative checklists of Dragonflies and Damselflies of Oklahoma and Kansas, based on data from George Bick and others. Though still in progress, the checklists offer source data, detailed notes, historical data, species lists (ordered by family), and many photographs and color distribution maps. Both students and researchers will find these checklists to be a useful reference tool for hundreds of species of Odonates.