FIELD GUIDE TO BUTTERFLIES OF NORTH AMERICA

The most user-friendly butterfly guide ever published, still handy and compact, now updated with the very latest information - Follows the latest classification, recognizing more than forty additional species - Includes four new 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