In this companion volume to Dragonfly Genera of the New World, Rosser W. Garrison, Natalia von Ellenrieder, and Jerry A. Louton provide a comprehensive, fully illustrated guide to the damselflies of North, Central, and South America. This illustrated reference contains original, up-to-date keys to the 125 genera of Zygoptera in North, Central, and South America; descriptive text for each genus; distribution maps; and highly detailed diagnostic illustrations. Each account lists all known species and generic synonyms, information on the status of classification, and references to larval descriptions. Featuring more than 2,500 illustrations and based on the authors' personal observations, Damselfly Genera of the New World is an indispensable resource for entomologists, limnologists, and naturalists.