. Elements of comparative zoology. Zoology. 262 SYSTEMATIC ZOOLOGY. molt by which the appearance is greatly changed and the pupal stage is reached. In the pupa (fig. 81) the abdominal legs are lost, the body is shortened and covered with a harder skin, in which one can trace the legs, an- tennae, and wings of the future moth or butterfly, folded over the breast. Many caterpillars of the moths, as a preparation for pupation, spin silken nests or cocoons, the silk being the product of glands which empty into the mouth. The pupae of butterflies have usually no such silken protection, but are free
. Elements of comparative zoology. Zoology. 262 SYSTEMATIC ZOOLOGY. molt by which the appearance is greatly changed and the pupal stage is reached. In the pupa (fig. 81) the abdominal legs are lost, the body is shortened and covered with a harder skin, in which one can trace the legs, an- tennae, and wings of the future moth or butterfly, folded over the breast. Many caterpillars of the moths, as a preparation for pupation, spin silken nests or cocoons, the silk being the product of glands which empty into the mouth. The pupae of butterflies have usually no such silken protection, but are free. From the fact that many. 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 Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
