Abstract
Three forest insects—the European pine-shoot moth ( Rhyacionia buoliana Schiff.), the larch case bearer ( Coleophora laricella Hbn.), and the birch leaf-mining sawfly ( Phyllotoma nemorata Fall.)—have recently become so injurious in New England that the Bureau of Entomology and Plant Quarantine is attempting the introduction of their parasitic enemies from Europe. W. F. Sellers, who is stationed at Budapest, Hungary, has charge of the collection and shipment of these parasites to America, and in this country they are received and cared for at the Melrose Highlands, Mass., station. The discussion is divided into three parts, each part dealing with one of the host species.
Published Version
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