Contributions Toward A Classification And Biology Of The North American Cerambycidae Larvae Of The Prioninae

Author : Frank Cooper Craighead
Publisher : Forgotten Books
ISBN 13 : 9781391583549
Total Pages : 36 pages
Book Rating : 4.5/5 (835 download)

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Download or read book Contributions Toward a Classification and Biology of the North American Cerambycidæ: Larvæ of the Prioninæ (Classic Reprint) written by Frank Cooper Craighead and published by Forgotten Books. This book was released on 2018-10-02 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Contributions Toward a Classification and Biology of the North American Cerambycidæ Larvæ of the Prioninæ Great care is needed in the methods of rearing these larvae. Often a single piece of infested wood will contain from five to a dozen different species of Cerambycidae. It has sometimes occurred that adults and larvae which have been. Found together in the wood have been wrongly associated by the' collector, and the larvae have been preserved in the collection under the name of the adult. As a matter of fact, however, it is more often the case that larvae and adults which have been found together are of different species rather than of the same, because the greater part of a brood of one species generally transforms about the same time. My practice has been to cut the larvae out of the infested wood, separating the species as nearly as possible, and then to cage each larva individually. As the adult emerges the larval skin is preserved for careful comparison with the alcoholic specimens. Many methods have been tried for proper preservation of the material. The most satisfactory for all purposes is to kill the specimens by boiling in water for from 5 to 10 minutes, according to size, and then place them in 75 per cent alcohol. This gives especially good results for anatomical work. Whiter specimens may be had by placing in a mixture of strong alcohol. And a small amount of acetic acid for a few minutes, or by killing in a boiling solution of this mixture. The latter method, however, often interferes with a subsequent study of the muscles. 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.