. Revision of the orthopteran group melanopli acridiidae with special reference to North American forms [microform]. Orthoptera -- North America; Acridiidae; Acridiens; Orthoptères -- Amérique du Nord. U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. XX PL. XVI. 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 Scudder, Samuel H. (Samuel Hubbard), 1837-1911; Smithsonian Institution. Washington : G. P. O.
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