. Fourteen weeks in zoology. Zoology. 220 SUBEINGDOM AKTICULATA. Fig. Sie. eggs, side by side, with a thin layer of woody fibre between. The larvae, on hatching, drop to the ground, in which they live for seven- teen years, feed- ing upon the roots of trees. When ready to enter the pupa state, they make cylindrical burrows, cemented water-tight, and at length issuing forth, in appearance like the imago except the want of wings, attach themselves to any object at hand, particular- CicMa septendScim, " Seventeen-year ; j^ ^^^ trunks of trees. In a short time, the thorax splittin
. Fourteen weeks in zoology. Zoology. 220 SUBEINGDOM AKTICULATA. Fig. Sie. eggs, side by side, with a thin layer of woody fibre between. The larvae, on hatching, drop to the ground, in which they live for seven- teen years, feed- ing upon the roots of trees. When ready to enter the pupa state, they make cylindrical burrows, cemented water-tight, and at length issuing forth, in appearance like the imago except the want of wings, attach themselves to any object at hand, particular- CicMa septendScim, " Seventeen-year ; j^ ^^^ trunks of trees. In a short time, the thorax splitting on the back, the perfect imago crawls out; after pairing, the female deposits its eggs, and the male -^ fills the air with the noise of the ear- piercing kettle-drum beneath its wings.* Coreidae.—The Squash-bug hibernates in cre^aces, but lays its eggs on the under ' side of squash leaves. Tlie young brood are of a pale ash color, and, after molting several times, appear in their perfect state with wings and wing-covers. A p h i d se (exhausters). — Plant-lice f have a wonderful life-history. The eggs. mg. 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 Steele, Joel Dorman, 1836-1886. New York, Chicago [etc. ] A. S. Barnes & Company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1872
