National Audubon Society field guide to North American butterflies
By: Robert Michael Pyle ; visual key by Carol Nehring and Jane Opper.
Contributors: National Audubon Society.
Edition: A Chanticleer Press ed.
Series: Audubon Society field guide series
Publisher: Knopf; Distributed by Random House
Published: 1995
Place of publication: New York
Language: eng
Number of pages: 924
ISBN-13: 9780394519142
Subjects: Butterflies -- North America -- Identification.; Insects -- Identification.; Insects -- North America -- Identification.
Genres: Identification.
Other titles: Field guide to North American butterflies.; Audubon Society field guide to North American butterflies.
Notes: Originally published: 1981.

Includes indexes.