. Bulletin of the Illinois State Laboratory of Natural History. Natural history -- Illinois. 121. f3 .^3 .5 -P CO 3 Tiph Metop S 1 C: CO 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 Illinois State Laboratory of Natural History. Bloomington, Ill. : The Laboratory

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