Economic entomology for the . economicentomolo00smit_0 Year: 1896 THE INSECT WORLD. 235 made. The lan^a hatches and the Httle wound through which the egg was laid heals so completely that no trace of it is visible Fig. 242. Work of the potato-stalk borer, Trichobaris 3-notata, in potato-vines. in the fully developed fruit. When the nut is ripe and drops to the ground the larva is full grown, and eats a round hole in the

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