. The butterfly book; a popular guide to a knowledge of the butterflies of North America. With 48 plates in color-photography, reproductions of butterflies in the author's collection, and many text illustrations presenting most of the species found in the United States. Butterflies -- North America. Fig. 25.—Chrysalis of Papilio pbilenor: a, front view; b, side view, showing manner in which it is held in place by the girdle of silk (Riley). groups of butterflies, are all suspended. The chrysalids of the Papilionidce, or swallowtail butterflies, are held in place by girdles, and generally are b
. The butterfly book; a popular guide to a knowledge of the butterflies of North America. With 48 plates in color-photography, reproductions of butterflies in the author's collection, and many text illustrations presenting most of the species found in the United States. Butterflies -- North America. Fig. 25.—Chrysalis of Papilio pbilenor: a, front view; b, side view, showing manner in which it is held in place by the girdle of silk (Riley). groups of butterflies, are all suspended. The chrysalids of the Papilionidce, or swallowtail butterflies, are held in place by girdles, and generally are bifurcate or cleft at the upper end (Fig. 25), and are greenish or wood-brown in color. A study of the structure of all chrysalids shows that within them there is contained the immature butterfly. The segments of the body are ensheathed in the corresponding segments of the chrysalis, and soldered over these segments are ensheathing plates of chitinous matter under which are the wings of the butterfly, as well as all the other organs neces- sary to its existence in the airy realm upon which it enters after emergence from the chrysalis. The practised eye of the ob- server is soon able to distinguish the location of the various parts of the butterfly in the chrysalis, and when the time for escape 12. 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 Holland, W. J. (William Jacob), 1848-1932. Garden City, N. Y. , Doubleday, Page
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishergarde, bookyear1922
