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Author: Cornell university. Department of entomology
Publisher:
ISBN:
Category : Insects
Languages : en
Pages :
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Author: Cornell university. Department of entomology
Publisher:
ISBN:
Category : Insects
Languages : en
Pages :
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Book Description
Author: New York State College of Agriculture. Department of Entomology
Publisher:
ISBN:
Category : Insects
Languages : en
Pages : 252
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Author: John Smart
Publisher:
ISBN:
Category : Anthropoda
Languages : en
Pages : 344
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Author: Canada. Agriculture Canada. Research Branch
Publisher: Canadian Government Publishing
ISBN:
Category : Science
Languages : en
Pages : 688
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Book Description
This publication is the result of a course on identification of Hymenoptera given three times since 1985 at the Centre for Land and Biological Resources Research. The considerable interest in these courses indicated the need for a comprehensive identification guide to all extant families of Hymenoptera. The main emphasis is on family identification using the keys, which are complemented by family sketches. The sketches include a taxonomic diagnosis to supplement the keys, a summary of the biology, the size and distribution, and important literature references.
Author: Charles Thomas Brues
Publisher: Forgotten Books
ISBN: 9781333267605
Category : Science
Languages : en
Pages : 154
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Book Description
Excerpt from Key to the Families of North American Insects: An Introduction to the Classification of Insects More than fifty thousand different species of insects are now known from North America. Their descriptions fill libraries and their final identification requires the knowledge of specialists. Obviously no single volume can provide for their determination. But this host of species is divided into groups of related forms, the families of insects, and it is with their recognition that the present work deals. Identification of the families has been effected by means of analytical keys, which have been arranged as dichotomies. In the first couplet, for example, two contrasting descriptions are given, one of which should agree with the insect to be determined. The number at the end of this description indicates the couplet which should then be studied, and so on until the final name is secured. All of the keys have been arranged in this way, as the writers' experience in the classroom shows that specimens can be most easily and rapidly classified with a key of this type, which also requires much less space for printing. While the dichotomies frequently represent the natural relationships or the lines of phyletic development, no attempt has been made to preserve natural divisions wherever the convenience and practical Opera tion of the keys would have been sacrificed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Reginald William Sims
Publisher: British Museum Press
ISBN: 9780471277675
Category : Nature
Languages : en
Pages : 172
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Book Description
Author: Steven A. Marshall
Publisher: Richmond Hill, Ont. : Firefly Books
ISBN:
Category : Nature
Languages : en
Pages : 790
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Book Description
An examination of the characteristics, habitat and behavior of insects, including comprehensive picture keys for insect identification.
Author: Reginald William Sims
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 178
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Author: Charles W. Heckman
Publisher: Springer Science & Business Media
ISBN: 9400707053
Category : Science
Languages : en
Pages : 690
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Book Description
Hemiptera - Heteroptera encompasses the three well-defined suborders of the true bugs which are adapted to an aquatic or littoral habitat. The book begins with a section on the biology these insects and provides illustrations of the basic features of their morphology and outlines the larval development. Brief outlines of the ecological and zoogeographical peculiarities of the three aquatic suborders are presented individually, and various methods for observing, collecting, preserving, rearing, and examining specimens are discussed. Most of the book is devoted to keys for the identification of adults to species, and notes are provided that will help recognize the known larvae. Unlike most other aquatic insects, the larval instars of the heteropteran species closely resemble the adults in their morphology, preferred habitats, and feeding habits. Therefore, distinguishing features of those relatively few larvae which have been described in detail are usually mentioned in the keys to the adults rather than being included in separate keys. In addition to the most important features for determining the individual species, many keys include additional notes on the morphology, which is intended to give the user a better chance of recognizing specimens of species not yet known to science. After the currently recognized name of each species, the known range is provided. Regions of the world outside of South America, South American countries, and the states of Brazil from which the species has been reported are listed. Following the range information, major synonyms previously used for the species in the literature are provided. If subspecies have been described and are still recognized as such, they are also discussed. Finally, if the status of the species is regarded as uncertain because of a poor description, strong resemblance to another species, or any other reason, a note is added that a detailed study will be necessary to clarify the status of the taxon. Taxonomic revisions in the book itself are strictly avoided. To provide the user of the keys with maximum assistance in making reliable identifications, the book is richly illustrated with pen and ink drawings of thousands of individual morphological structures arranged in 820 figures. The book is intended to make a significant impact toward popularizing the study of South American water bugs by assembling and condensing the information in hundreds of individual publications on the group, which appeared in many books and journals published in many different countries over the past 200 years. Some of these works are very difficult to obtain in South America, and their lack creates serious impediments to systematic, ecological, and zoogeographical research. In the more than 730 titles appearing in the bibliography, the original descriptions and revisions of almost all South American species can be found.
Author: Hongfu Zhu
Publisher: WCB/McGraw-Hill
ISBN:
Category : Nature
Languages : en
Pages : 248
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Book Description
