Field guide to butterflies of North America

The most user-friendly butterfly guide ever published, still handy and compact and updated with the very last information:

– Follows the latest classification, recognizing more than forty additional species.
– Includes color plates of Mexican-border rarities
– More than 2,300 images of butterflies in natural poses
– Pictorial table of contents
– Convenient one-page index
– Range maps on text pages