National Audubon Society - Field Guide to Butterflies - North America. The first all-photographic field guide features 1014 full-color images of living butterflies, caterpillars, and chrysalises in their natural habitats. All the true butterflies and the most common skippers of North America north of Mexico are covered, with complete descriptions for 600 species and notes on 70 others. Visual organization of photographs by color of butterfly, caterpillar, or chrysalis. Includes a complete butterfly index, plus a separate index of host plants to aid in identification. Vinyl cover, 924 pages, 4" x 7 ½", $19.95. To order by phone call toll free 866-596-9982. Free Shipping!