U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF ENTOMOLOGY— BULLETIN No. 64, Part VL 



L. O. HOWARD, Entomologist and Chief of Bureau. 



SOME MISCELLANEOUS RESULTS OF THE WORK 

 OF THE lU^REAU OF ENTOMOLOGY-IX. 



THE GREENHOUSE THRIPS. 



BY 



H. M. RUSSELL, 



Agent and Expert. 



Issued Aucjust 4, 1909. 



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WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1909. 



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