Author: Edward Payson Van Duzee

Publisher: Theclassics.Us

Published: 2013-09

Total Pages: 36

ISBN-13: 9781230466804

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... Studies in North American Membracidse. By Edward P. Van Duzee In the present paper I give the results of a systematic study of all the Membracids in my own collection and of such additional material as I could procure from my correspondents. With this material I have been able to recognize a considerable portion of the species published by Say, Fitch and Emmons and most of those of the more recent writers. It is quite possible that some of these determinations of the older species may have to be changed as the result of later studies and the acquisition of fuller material but I believe the most of them will stand as here recognized. A large number of our species were described by Say and Fitch, whose descriptions, especially those of Say, were concise and sufficient, and most of these species have been located with reasonable certainty. Emmons' species published in the Natural History of New York are generally recognizable by the excellent figures he gives while his descriptions are all but worthless. Fairmaire's descriptions are poor but he gives some figures and most of his North American species have been placed with more or less certainty. Of more recent work the best is that of Canon Fowler in the Biologia Centrali Americana. While he touches but few of our species his systematic work on the genera is excellent and it is of much value as supplementing the foundation laid by Stal. Dr. Coding's synopsis of the genera was the best for our fauna published to that time and his later catalogue listed our species as well probably as could then be done, but these papers were of little use in the determination of our species as his descriptions of new forms were poor and he gave no comparative notes to assist in locating the older forms. In...

Download or read book Studies in North American Membracidae written by Edward Payson Van Duzee and published by Theclassics.Us. This book was released on 2013-09 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... Studies in North American Membracidse. By Edward P. Van Duzee In the present paper I give the results of a systematic study of all the Membracids in my own collection and of such additional material as I could procure from my correspondents. With this material I have been able to recognize a considerable portion of the species published by Say, Fitch and Emmons and most of those of the more recent writers. It is quite possible that some of these determinations of the older species may have to be changed as the result of later studies and the acquisition of fuller material but I believe the most of them will stand as here recognized. A large number of our species were described by Say and Fitch, whose descriptions, especially those of Say, were concise and sufficient, and most of these species have been located with reasonable certainty. Emmons' species published in the Natural History of New York are generally recognizable by the excellent figures he gives while his descriptions are all but worthless. Fairmaire's descriptions are poor but he gives some figures and most of his North American species have been placed with more or less certainty. Of more recent work the best is that of Canon Fowler in the Biologia Centrali Americana. While he touches but few of our species his systematic work on the genera is excellent and it is of much value as supplementing the foundation laid by Stal. Dr. Coding's synopsis of the genera was the best for our fauna published to that time and his later catalogue listed our species as well probably as could then be done, but these papers were of little use in the determination of our species as his descriptions of new forms were poor and he gave no comparative notes to assist in locating the older forms. In...