The Fir Engraver

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Excerpt from The Fir Engraver: A Serious Enemy of Western True FirsThe mature adult is black, shin ing, from 3 to 5 mm. Long, and more active than most bark beetles. In lateral profile the ventral part Of the abdomen is incurved (fig. Newly formed adults remain quiet for a period of 7 to 14 days or longer before boring to the outside Of the bark, during which colora tion deepens from light ivory to black. They may be Observed from June 1 to September 10, but are most numerous in ¿ight during July and August. Emergence is ex tended over such a long period that few beetles are seen in ¿ight at any particular time. They have never been Observed to ¿y in pairs, groups, or swarms, but Often gather in numbers on out logs.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.