Excerpt from Memoirs on the Coleoptera, Vol. 6: 1915The primary divisions of the Scarabaeidae are not rigorously definable and, in fact, after so long a period of geologic evolution, it would be illogical to imagine any other condition than an inter blending of structural characters to such a degree as to render delimitation of extended groups, in other than a general way, more or less unsatisfactory. There is scarcely a structural feature defining one group that may not appear in some other group. This is in a measure true also of the more restricted subdivisions, such as genera, except when monotypic. The discussion of these points is made by Lacordaire so fully and so well, that it is not necessary to go into the subject at the present time and in a work designed more especially to differentiate and define the species of a restricted fauna.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.