. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; DiptÃ¨res; Insectes. PTYCIlorTERA. 311 tlio appearance of a double forceps ; but the upper pair seems to i(|tn'seiil the hist dorsal sej^iDoiit of the ahdomcn, only very much excised, and with the sides developed into elouji'ated, forcâ 'â¢ t â¢ -â¢"(I' ^â 4. I 1 i *â¢ 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 pe

. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; DiptÃ¨res; Insectes. PTYCIlorTERA. 311 tlio appearance of a double forceps ; but the upper pair seems to i(|tn'seiil the hist dorsal sej^iDoiit of the ahdomcn, only very much excised, and with the sides developed into elouji'ated, forcâ 'â¢ t â¢ -â¢"(I' ^â 4. I 1 i *â¢ 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 Osten-Sacken, C. R. (Carl Robert), 1828-1906. Washington : The Institution

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Keywords: ., bookcentury1800, bookdecade1860, booksubjectd, booksubjectinsects

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