. Elements of zoölogy : a textbook. Zoology. 328 AKTICULATA: LNSECTA. and so on, till each female lias deposited her whole stock of four or five hundred eggs. When the eggs hatch, the young fall to the ground and immediately burrow to the roots of the tree, upon whose juices they subsist. They live in this way till the time of their transformation approaches, when they gradually ascend towards the surface, and at length they leave the ground, and crawl up the trunks of trees, where they fix their feet firmly to the bark. After some effort they open a longitudinal fissure in the skin of the bac
. Elements of zoölogy : a textbook. Zoology. 328 AKTICULATA: LNSECTA. and so on, till each female lias deposited her whole stock of four or five hundred eggs. When the eggs hatch, the young fall to the ground and immediately burrow to the roots of the tree, upon whose juices they subsist. They live in this way till the time of their transformation approaches, when they gradually ascend towards the surface, and at length they leave the ground, and crawl up the trunks of trees, where they fix their feet firmly to the bark. After some effort they open a longitudinal fissure in the skin of the back, and through this opening the perfect Cicada comes forth, leaving its dry and empty pupa skin attached to the tree. FIG. 439. FIG. Tree-hopper, Membracis bimaculata, Fabricius. Other examples of the Hemiptera homoptera are seen in the strangely-formed little Tree-hoppers or Cercopidse, which are found upon grass, herbs, and trees, upon the sap of which they subsist, imbibing such quantities that it oozes out of their bodies in the form of little bubbles, covering the insect of the Hemiptera in a mass of froth. Of the very small and minute Hemiptera homoptera, none, perhaps, are more remarkable than the Plant-lice or Aphidse, and the Bark- lice or Coccidae. The former have on the hind part of their short body two minute tubes or pores, from which exude minute drops of a sweet fluid. And this fact explains the reason why ants collect in great numbers where Plant-lice abound ; for the ants feed upon this honey-like fluid, and the most friendly relations exist between these two kinds of insects. The ants even caress the Plant-lice with their antennae, apparently soliciting them to give out the sweet fluid ! The Aphidae multiply with astonishing rapidity, and in FIG. 441. Aphis, Aj)his mali, 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 ma
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