Dragonflies of North America, revised edition By James G. Needham, Minter J. Westfall, Jr., Michael L. May Scientific Publishers, Inc., 2000
This tricky-to-find, heavy, and expensive book is the definitive book on North American dragonflies. All the Anisoptera of the U.S., Canada, the Greater Antilles, and the northern tier of Mexican states are covered. Not the kind of hefty book one would use as a field guide (although I do carry it in a backpack sometimes), but there are several important features that make this guide absolutely indispensible to anyone serious about dragonfly identification:
-Names, detailed descriptions, and illustrations for all the external features of a dragonfly adult and larva (including detailed diagrams of wing venation, thoracic patterns, and genitalia)
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