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Excerpt from Revision of the North American Moths of the Subfamily Eucosminae of the Family Olethreutidae It is the author's conviction that in the Olethreutidae venational changes Of the hind wings are the characters of most fundamental import. On these characters - with the exceptions of a stalked 6 - 7, easily and at different places derived from the normal approximate condition of these veins, and the united 3 - 4 derived equally readily from a stalking of 3 - 4 - the genera fall into larger natural groups to which, for convenience of handling, subfamily names are given. 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.
The present paper is the result of several years' study of the family Olethreutidae. It is based chiefly on the collections of the United States National Museum, the American Museum of Natural History, and of Dr. William Barnes, of Decatur, Illinois. Twenty-six genera are recognized as belonging to the subfamily Eucosminae, of these nine are described as new.