Description
Excerpt from The Head-Capsule and Mouth-Parts of Diptera: With Twenty-Five Plates
Illinois biological monographs of structure and other interesting modifications, shown in the figures. But without direct bearing on the subject of homology, are necessarily disregarded. The fixed and various movable parts of the head are dis cussed separately, as developed from the hypothetical types, the discus sions in every case proceeding from the generalized to the specialized.
All the general conclusions pertaining to the head and mouth-parts presented in the following pages are based entirely on a study of the species listed under materials, unless otherwise stated. General statements in respect to the mouth-parts are true only for species having them well developed.
The names here adopted for the sclerites of the head and mouth parts have been made to agree, so far as possible, with the terms now in common use for the same parts in generalized insects. The terms. Most commonly used thruout the literature for structures peculiar to this order have been adopted unless clearly unsuitable; and new terms. Have been applied only to structures described here for the first time and to parts to which the current names are inappropriate.
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.
Illinois biological monographs of structure and other interesting modifications, shown in the figures. But without direct bearing on the subject of homology, are necessarily disregarded. The fixed and various movable parts of the head are dis cussed separately, as developed from the hypothetical types, the discus sions in every case proceeding from the generalized to the specialized.
All the general conclusions pertaining to the head and mouth-parts presented in the following pages are based entirely on a study of the species listed under materials, unless otherwise stated. General statements in respect to the mouth-parts are true only for species having them well developed.
The names here adopted for the sclerites of the head and mouth parts have been made to agree, so far as possible, with the terms now in common use for the same parts in generalized insects. The terms. Most commonly used thruout the literature for structures peculiar to this order have been adopted unless clearly unsuitable; and new terms. Have been applied only to structures described here for the first time and to parts to which the current names are inappropriate.
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.
Details
Publisher - Forgotten Books
Language - English
Hardback
Contributors
Author
Alvah Peterson
Published Date -
ISBN - 9780266392422
Dimensions - 22.9 x 15.2 x 0.9 cm
Page Count - 166
Paperback
Contributors
Author
Alvah Peterson
Published Date -
ISBN - 9781333214111
Dimensions - 22.9 x 15.2 x 0.9 cm
Page Count - 168
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