A guide to 65 species of butterflies common to the American Midwest. Using digital photographs instead of drawings, the guide shows sexual differences between males and females, seasonal forms, and both the upper- and undersides of wings when these are critical for proper identification.
A guide to 65 species of butterflies common to the American Midwest. Using digital photographs instead of drawings, the guide shows sexual differences between males and females, seasonal forms, and both the upper- and unders...
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