Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 OUR K1MKNDS AM) FOKS 121 FIG. 101. Scale insect (Pulvinaria pruni) on plum twigs. Subsists on the sap, which it draws out through its slender beak. An insect injurious to horticulture. From a photo- graph.

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