LETTER OF SUBMITTAL. 



Department of Agriculture, 



Division of Entomology, 



Washington, D. C, March 15, 1887. 

 Sir : I have the honor to submit for publication Bulletin Xo. 13 of 

 this Division. This Bulletin comprises such of the reports of the agents 

 of the Division for the season of 1886 as were necessarily excluded from 

 the Annual Beport for lack of space. 

 Bespectfully, 



C. V. BILE1, 



Entomologist. 

 Hon. Gorman J. Colman, 



Commissioner of Agriculture. 



