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Butterflies of New England by Larry Weber
Butterflies of North America by Jeffrey Glassberg Field Guide to Butterflies of North America by Jim Brock and Kenn Kaufman Butterflies of the World by Alexander B. Klots National Audubon Society Field Guide to New England by Peter Alden et al The Audubon Society Field Guide to North American Butterflies by Robert Pyle Caterpillars of Eastern North America by David L. Wagner The Audubon Society Field Guide to North American Insects and Spiders by Lorus and Margery Milne BugGuide - an amazing on-line resource with more bug photos than you can possibly view. |