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Dragonfly Nymphs of North America

Dragonfly Nymphs of North America PDF Author: Kenneth J. Tennessen
Publisher: Springer
ISBN: 3319977768
Category : Science
Languages : en
Pages : 627

Book Description
This monograph is the first of its kind devoted entirely to the dragonfly nymphs of North America north of Mexico, the focus being accurate identification of the 330 species of Anisoptera that occur in the region. Nymphal external morphology is described and illustrated in detail, and all terms needed to navigate the dichotomous keys are defined. Species are tabulated with references that provide the most detailed, accurate descriptions for each; species that are inadequately described are so indicated. The key separating the seven families in the region contains several new characters. The families are then covered separately: Aeshnidae (13 genera), Gomphidae (17 genera), Petaluridae (2 genera), Cordulegastridae (2 genera), Macromiidae (2 genera), Corduliidae (7 genera), and Libellulidae (29 genera). Each family is further characterized, followed by a generic key. A drawing of the habitus and diagnostic details for each genus are provided, along with additional diagnostic remarks and notes on habitat and life cycle; for each genus, a map shows its geographic distribution in North America. Full-grown nymphs of all known species of each genus are keyed and diagnosed; characters that apply to earlier instars are noted. Morphological variation in character states was analyzed in order to assess the reliability of previously utilized characters and to discover new characters. Most of the characters used to distinguish all levels of taxa are illustrated; a total of 702 figures, comprising 1,800 original drawings, along with selected photographs where necessary for clarity, accompany the keys. Measurements of total length, head width, and other variables for each species are provided in tables. Difficulties with past keys and descriptions, including errors, omissions and other shortcomings, are addressed. The importance of nymph characters in helping solve generic and specific distinctions and their role in phylogenetic studies is emphasized. Methods for collecting, rearing, and preserving dragonfly nymphs and exuviae are presented. The final chapter discusses research opportunities on North American Anisoptera nymphs, including taxonomic needs, studies on structure and function, life history and microhabitat, water quality indices and conservation efforts. The habitus drawings of all genera are arranged according to family in five plates (Appendix I); although the book is intended as a lab manual, these plates conveniently allow for comparison based on nymph shape making field identification to genus possible in many cases. Appendix II contains a brief history of dragonfly nymph studies in North America. A glossary and an index to scientific names are included.

Dragonfly Nymphs of North America

Dragonfly Nymphs of North America PDF Author: Kenneth J. Tennessen
Publisher: Springer
ISBN: 3319977768
Category : Science
Languages : en
Pages : 627

Book Description
This monograph is the first of its kind devoted entirely to the dragonfly nymphs of North America north of Mexico, the focus being accurate identification of the 330 species of Anisoptera that occur in the region. Nymphal external morphology is described and illustrated in detail, and all terms needed to navigate the dichotomous keys are defined. Species are tabulated with references that provide the most detailed, accurate descriptions for each; species that are inadequately described are so indicated. The key separating the seven families in the region contains several new characters. The families are then covered separately: Aeshnidae (13 genera), Gomphidae (17 genera), Petaluridae (2 genera), Cordulegastridae (2 genera), Macromiidae (2 genera), Corduliidae (7 genera), and Libellulidae (29 genera). Each family is further characterized, followed by a generic key. A drawing of the habitus and diagnostic details for each genus are provided, along with additional diagnostic remarks and notes on habitat and life cycle; for each genus, a map shows its geographic distribution in North America. Full-grown nymphs of all known species of each genus are keyed and diagnosed; characters that apply to earlier instars are noted. Morphological variation in character states was analyzed in order to assess the reliability of previously utilized characters and to discover new characters. Most of the characters used to distinguish all levels of taxa are illustrated; a total of 702 figures, comprising 1,800 original drawings, along with selected photographs where necessary for clarity, accompany the keys. Measurements of total length, head width, and other variables for each species are provided in tables. Difficulties with past keys and descriptions, including errors, omissions and other shortcomings, are addressed. The importance of nymph characters in helping solve generic and specific distinctions and their role in phylogenetic studies is emphasized. Methods for collecting, rearing, and preserving dragonfly nymphs and exuviae are presented. The final chapter discusses research opportunities on North American Anisoptera nymphs, including taxonomic needs, studies on structure and function, life history and microhabitat, water quality indices and conservation efforts. The habitus drawings of all genera are arranged according to family in five plates (Appendix I); although the book is intended as a lab manual, these plates conveniently allow for comparison based on nymph shape making field identification to genus possible in many cases. Appendix II contains a brief history of dragonfly nymph studies in North America. A glossary and an index to scientific names are included.

Dragonflies and Damselflies of Costa Rica

Dragonflies and Damselflies of Costa Rica PDF Author: Dennis R. Paulson
Publisher: Comstock Publishing Associates
ISBN: 9781501713163
Category : Damselflies
Languages : en
Pages : 416

Book Description
"Describes the 283 species of dragonflies and damselflies known to occur in Costa Rica. Illustrated with photographs, and drawings show close-up features of morphology important for identification. Descriptions include body and wing measurements, tips on how to identify and distinguish species, and notes on natural history, habitat, and range"--

WG: Dragonflies

WG: Dragonflies PDF Author: Cynthia Berger
Publisher: Stackpole Books
ISBN: 0811751066
Category : Nature
Languages : en
Pages : 140

Book Description
• First title in Stackpole Books' new Wild Guide series • A complete, expert introduction to the world of dragonflies and also covers damselflies • Detailed color drawings of different species and behaviors Dazzling in appearance, idiosyncratic in behavior, dragonflies and damselflies have long captured the imaginations of nature lovers. In this illustrated natural history guide, Cynthia Berger takes the reader on a whirlwind trip through the lives of these intriguing insects, from their birth underwater (where they actually spend most of their lives as ferocious nymphs) to their miraculous transformation into free-flying adults. Features a field guide to the most common North American species--including life-size silhouettes for easy identification--as well as tips for observing dragonflies in the wild and attracting them to your backyard.

A Manual of the Dragonflies of North America

A Manual of the Dragonflies of North America PDF Author: J. G. Needham
Publisher: Univ of California Press
ISBN:
Category :
Languages : en
Pages : 628

Book Description
Field studies; Procedure; Systematic classification.

Dragonflies of North America

Dragonflies of North America PDF Author: Ed Lam
Publisher: Princeton University Press
ISBN: 0691245142
Category : Nature
Languages : en
Pages : 449

Book Description
A comprehensive, fully illustrated guide to every dragonfly species found in North America Dragonflies are large and beautiful insects, diverse in color and pattern. This premier field guide provides all the information you need to identify every male and female dragonfly found in North America, whether in the field, in the hand, or under the microscope. The extensive illustrations are the heart of the book. Close-up color portraits of each species, often several times life size, show the best possible specimens for close examination. Each sex is depicted using multiple images, with postures and viewpoints consistently maintained to aid comparison. Dragonflies of North America is the ultimate guide to these extraordinary insects. Covers all 329 North American species, including distinctive subspecies and variations Features nearly 1,900 highly detailed paintings and drawings, providing clarity and consistency that photographs cannot match Illustrates each species with multiple views for easy identification and comparison Gives an invaluable introduction to dragonfly anatomy, behavior, and life cycle Offers additional guidance for the most challenging species that defy field identification, highlighting anatomical characteristics to aid identification in the hand Includes a distribution map for every species

Dragonflies

Dragonflies PDF Author: Pieter van Dokkum
Publisher: Yale University Press
ISBN: 0300213468
Category : Science
Languages : en
Pages : 176

Book Description
Almost without our noticing, dragonflies dart through our world, flying, seeing, hunting, mating. Their lives are as mysterious as their gossamer wings are beautiful. In this book Pieter van Dokkum reveals many of the dragonfly’s secrets, capturing the stages of this striking insect’s life cycle in unprecedented close-up photographs. He documents scenes of dragonfly activity seldom witnessed and rarely photographed. The book begins on a moonlit summer night, when an alien-looking larva crawls out of the water and transforms into a fully formed dragonfly. In the following chapters we witness dew-covered dragonflies sparkling in the morning sun, then a pair of mating dragonflies moving through the air in a twelve-legged, eight-winged dance. In the final chapter, one generation dies as the next prepares to leave the water and begin its own winged journey. Each stage is documented through van Dokkum’s inquisitive lens and accompanied by information on various species of dragonflies and damselflies, their metamorphosis, and their ecological importance as insect predators.

Dragonflies

Dragonflies PDF Author: Chris Earley
Publisher:
ISBN: 9781770851863
Category : Juvenile Nonfiction
Languages : en
Pages : 0

Book Description
Tips and tricks on how to catch, identify and study dragonflies.

Dragonflies and Damselflies of the West

Dragonflies and Damselflies of the West PDF Author: Dennis Paulson
Publisher: Princeton University Press
ISBN: 0691122814
Category : Nature
Languages : en
Pages : 537

Book Description
Dragonflies and Damselflies of the West is the first fully illustrated field guide to all 348 species of dragonflies and damselflies in western North America. Dragonflies and damselflies are large, stunningly beautiful insects, as readily observable as birds and butterflies. This unique guide makes identifying them easy--its compact size and user-friendly design make it the only guide you need in the field. Every species is generously illustrated with full-color photographs and a distribution map, and structural features are illustrated where they aid in-hand identification. Detailed species accounts include information on size, distribution, flight season, similar species, habitat, and natural history. Dennis Paulson's introduction provides an essential primer on the biology, natural history, and conservation of these important and fascinating insects, along with helpful tips on how to observe and photograph them. Dragonflies and Damselflies of the West is the field guide naturalists, conservationists, and dragonfly enthusiasts have been waiting for. Covers all 348 western species in detail Features a wealth of color photographs Provides a color distribution map for every species Includes helpful identification tips Serves as an essential introduction to dragonflies and their natural history

The Growth of Dragonfly Nymphs at the Moult and Between Moults

The Growth of Dragonfly Nymphs at the Moult and Between Moults PDF Author: George Daniel Shafer
Publisher:
ISBN:
Category : Dragonflies
Languages : en
Pages : 44

Book Description


Dragonflies through Binoculars

Dragonflies through Binoculars PDF Author: Sidney W. Dunkle
Publisher: Oxford University Press
ISBN: 0199727295
Category : Nature
Languages : en
Pages : 369

Book Description
Dragonfly watching is fast becoming an enjoyable and exciting hobby for many of those who love butterfly watching. This book picks up on that trend and brings it to the reader in an attractive and accessible format. A new addition to Oxford's acclaimed Butterflies through Binoculars series of field guides, Dragonflies through Binoculars allows for quick and easy identification of all the 300-plus species of dragonflies that have been found in the United States and Canada. In these well-illustrated pages, Sidney W. Dunkle answers any query the beginner or expert might have on the subject of dragonfly-watching on this continent--what kind of binoculars to buy, where to start looking for dragonflies, how to photograph these striking creatures, which clubs or societies to join, and so forth. Other important features for this handy field guide include detailed accounts of every species mentioned, useful information on habitats, explanations of mating rituals, full-color photographs of most of the species described, and range maps.