Insect enemies of the pine in the Black Hills forest reserve : an account of results of special investigations, with recommendations for preventing losses . Bui. 32, New Series, Div. of Entomology, U. S. Dept. of Agriculture. Plate Work of the Rock Pine-wood Engraver < Pityogenes cariniceps Lecj. Galleriesin inner Bark and Surface of Wood. About one-third Natural Size. (Origi-nal.) Bui. 32, New Series, Div. of Entomology, U. S. Dept. of Agriculture. Plate VI.

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