. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT REGION" 19 ACKNOWLEDGMENTS j In preparing this list I am under great obligations to a i number of specialists for their generous assistance in deter- ; mining material. Through the kindness of Dr. L. 0. Howard, Messrs. S. A. Rohwer, R. A. Cushman, A. B. Gahan, and ; C. F. W. Muesebeck named many of the sawflies and parasitic i Hymenoptera. The ants were determined by Dr. W. M. \ Wheeler; the Chrysididae, by Dr. L. H. Taylor; the â Eumenidae, by Dr. J, Bequaert; the Sphecidae, by
. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT REGION" 19 ACKNOWLEDGMENTS j In preparing this list I am under great obligations to a i number of specialists for their generous assistance in deter- ; mining material. Through the kindness of Dr. L. 0. Howard, Messrs. S. A. Rohwer, R. A. Cushman, A. B. Gahan, and ; C. F. W. Muesebeck named many of the sawflies and parasitic i Hymenoptera. The ants were determined by Dr. W. M. \ Wheeler; the Chrysididae, by Dr. L. H. Taylor; the â Eumenidae, by Dr. J, Bequaert; the Sphecidae, by Dr. H. T. J Fernald; some of the bees, by Mr. H. L. Viereck; the j Megachile, by Mr. T. B. Mitchell, and the Psammocharidae j and many of the Neuropteroids, by Mr. Nathan Banks. In the Diptera I have had the assistance of Dr. C. P. Alex- \ ander on the Tipulidae; Dr. J. M. Aldrich, on the Tachinidae j and Sarocophagidae; Mr. M. C. Van Duzee, on the Dolichopo- ] didae; Prof. C. T. Brues, on the Phoridae; Mr. J. R. Malloch, j on the Anthomyiinae, and Mr. E. T. Cresson, Jr., on the \ Ephydridae. Messrs. H. C. Fall and C. A. Frost have deter- | mined a number of Coleoptera; Mr. A. P. Morse, a number j of Orthoptera; Prof. Herbert Osborn, a number of Homop- j tera; Dr. H. M. Parshley and Dr. H. B. Hungerford, a number j of Hemiptera, and Dr. R. H. Howe, Jr., a number of Odonata. j Mr. P. J. Chapman has revised the list of Psocidae, and j Mr. H. S. Peters, the Mallophaga. ' To the Journal of Economic Entomology I am indebted j for the picture of Prof. H. C. Fernald. I j Charles W. Johnson. I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Procter, William, 1872-1951; Mount Desert Island Biological Laboratory; Johnson, Charles Willison, 1863-1932; Blake, Charles Henry, 1901-. Philadelphia, The Wistar Institute of
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