"B 



^ . 5"# U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— BULLETIN No. 58. 



L. O. HOWARD. Eniomoloaist and Chief of Bureau. 



SOME INSECTS INJURIOUS TO FORESTS. 



I. THE LOCUST BORER. 



By A. D. HOPKINS, In Charge of Forest Insect Investigations. 



II. THE WESTERN PINE-DESTROYING BARKBEETLE. 



By J. L. WEBB, Special Field Agent, Forest Insect Investigations. 



III. ADDITIONAL DATA ON THE LOCUST BORER. 



By A. D. HOPKINS, In Charge of Forest Insect Investigations. 



IV. THE SOUTHERN PINE SAWYER. 



By J. L. WEBB, M. S., Agent and Eipey. 



V. INSECT DEPREDATIONS IN NORTH AMERICAN FORESTS AND PRACTICAL 

 METHODS OF PREVENTION AND CONTROL. 



By A. D. HOPKINS, Ph. D., In Charge of Forest Insect Investigations. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1910. 



