Set includes revised editions of some issues.

"The Black Files (Simuliidae) of North America" is an authoritative illustrated reference--with importance for ecology, genetics, and conservation--of the black flies in North America including 43 species identified here for the first time.

Excerpt from American Black Flies, or Buffalo Gnats It is not considered necessary to rewrite the history of the Simuliidae in this paper, but a bibliography is given on page 69 of the principal papers on the American species in the group, which may be consulted with reference to the biology of the species. 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.