THE MAYFLIES, OR EPHEMEROPTERA, OF ILLINOIS
by B. D. Burks
1953 (1975 reprint), 224 pages, 6 b/w photos, 395 figures. Invaluable reference to the mayflies of the North Central & Northeastern United States and adjacent Canada. It treats 48 genera and 222 species, with Illinois records of 126 species. A later preface by George F. Edmunds, Jr., modernizes the nomenclature and higher classification. Illinois Natural History Survey Bulletin; clothbound; 6-1/4 x 9-1/2″.
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