Author: Ezra Townsend Cresson

Publisher: Forgotten Books

Published: 2017-11-18

Total Pages: 34

ISBN-13: 9780331060522

Excerpt from On the North American Species of the Genus Osmia The labial palpi four-jointed, the basal joint elongate, the second nearly twice as long, the third and fourth minute, the third inserted at the apex of the second, the fourth at the apex of the third, the two latter clavate, truncate at their apex. The maxillary palpi four-jointed, the basal joint stoutest, broad est at the base, about the same length as the second and third joints, the apical joint minute. The superior wings with one marginal and two submarginal cells, the second submarginal cell receiving the two recurrent nervures. In the female the head is usually very large, subquadrate, the ocelli placed forward on the vertex in a slight curve; the abdomen furnished with a dense pollen-brush beneath. 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.