Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 WEALTH OF INSECT LIFE 185 FIG. 151. Giant water-bug (Bena- cus griseus)—natural size. blood of its victim. This insect is harmless, but would readily use its beak in self-defense. The Homoptera includes such forms as the cicada or harvest-fly (sometimes erro- neously called locust), the buffalo tree-hopper, aphids or plant-lice, and scale insects. Of all the insects in this or- der, possibly the plant-lice and scale insects are the most unique in their development. The plant-lice, in addit
Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 WEALTH OF INSECT LIFE 185 FIG. 151. Giant water-bug (Bena- cus griseus)—natural size. blood of its victim. This insect is harmless, but would readily use its beak in self-defense. The Homoptera includes such forms as the cicada or harvest-fly (sometimes erro- neously called locust), the buffalo tree-hopper, aphids or plant-lice, and scale insects. Of all the insects in this or- der, possibly the plant-lice and scale insects are the most unique in their development. The plant-lice, in addition to a very peculiar mode of development, have with- in their family certain spe- cies which secrete a kind of honey much appreciated by certain ants; and as these ants have now come to rely upon this as a means of subsistence, they have in many cases adopted, as it were, the plant-lice, and care for them by moving them about to the tenderest parts of the plants from which the aphids draw their nourish- ment. And in turn the aphids, from FIG. 152. Cicada and cast-off nymphal cov- 1 , , Wins-natural size. From a photograph. «>ng attention by tllC
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