A study of the Megaloptera of the Pacific coastal region of the United States.By Evans, Elwin D.
This reference is very helpful for those interested in Megaloptera of California, Oregon, and Washington. It has many useful keys, descriptions, discussions and figures. It's the Ph.D. dissertation of E. D. Evans (210 pages, 124 figures), and is freely available as a PDF at this link
[courtesy of the Bibliography of the Neuropterida page
of the [url=http://lacewing.tamu.edu/Homepage/Ma