. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. 'â â '^rm ';','T, ' 1 â ' il. 'â â â "': *'- ' "â ''â jBI :iiL:^;:l â :^>J'^S [SM '«. 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 Osten-Sacken, C. R. (Carl Robert), 1828-1906. Washington : The Institution

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Keywords: ., bookcentury1800, bookdecade1860, booksubjectd, booksubjectinsects