The Thompson Yates and Johnston Laboratories Report, Vol. 7 PDF Download

Author: Rubert Boyce
Publisher:
ISBN: 9781331951148
Category : Science
Languages : en
Pages : 130

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Book Description
Excerpt from The Thompson Yates and Johnston Laboratories Report, Vol. 7: February, 1906 Male (fig. 1). - Body rather slender. Head as broad as long, quadrangular, posterior angles with a large flat chitinous expansion from which arises a stout hair extending backwards and reaching slightly beyond the insertion of the third pair of legs. Mentum with six short, curved spines, arranged in a circlet; beyond the mentum is a bilateral series of three larger spines, arranged somewhat in the form of a circle. Mesothorax with two long, stiff hairs, widely separated. Antennae (fig. 2) stout, of five segments; first segment much the largest, broader than long, the length equalling half the width of the head; second segment simple; third segment the shortest, anteriorly produced into a long, blunt, curved spine; fourth segment simple, not quite as long as the second; apical segment shorter than the fourth, apex truncate, bearing three or four minute spines; margins of all the joints more or less highly chitinised. Leg i. shorter than the rest; leg ii. (fig. 3) similar to leg i., but the tarsus is a little more dilated; claw long and slender; leg iii. much the stoutest; terminal clasping-claw (fig. 4) large, apex blunt; inner sub-terminal claw much smaller, and when closed lies completely hidden within a groove in the tarsal joint, a small stout spine arises from its base. Abdomen of nine segments, each segment furnished with a transverse series of long, stiff hairs, some of those at the margins being much the longest. Genital armature (see fig. 1) with a central, slightly curved, blunt, spineshaped, or horn-shaped organ, on either side of which is a small setiferous lobe. Female. - Head (fig.5) much narrower than that of the male, somewhat rectangular, length greater than the width. 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.