Revised edition of the monographic treatment of the smaller Odonata, the damselflies, of North America. Includes all known species from Alaska to northern Mexico, and including the Greater Antilles, a total of 168 species.
All species data and keys have been carefully revised and corrected by Prof May.
The colour supplement illustrates 155 species with full-colour images taken from nature, and shows both males and females. Most images are greatly enlarged and arranged four to a page to show the important colour patterns of the head and body to full advantage for field identification.