. Catalogue of the described Lepidoptera of North America. Prepared for the Smithsonian Institution. Lepidoptera -- North America. Tig-. sometimes small inclosed cells at the median, called accessory cells, which are either situated at the root of the secondaries, fig. 22, r, or intrusive cells, as fig. 25, s, or appendicular cells, as fig. 25, x. In the family of Tineidce with lanceolate secondaries, the nerve structure declines. The median cell is indistinct or entirely obso- lete, for all the nerves arise either from the root or other nerves, or lose themselves in the membrane in the v
. Catalogue of the described Lepidoptera of North America. Prepared for the Smithsonian Institution. Lepidoptera -- North America. Tig-. sometimes small inclosed cells at the median, called accessory cells, which are either situated at the root of the secondaries, fig. 22, r, or intrusive cells, as fig. 25, s, or appendicular cells, as fig. 25, x. In the family of Tineidce with lanceolate secondaries, the nerve structure declines. The median cell is indistinct or entirely obso- lete, for all the nerves arise either from the root or other nerves, or lose themselves in the membrane in the vicinity of the cross - 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 Morris, John G. (John Gottlieb), 1803-1895. Washington : Smithsonian Institution
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherwashi, bookyear1860
