THE MAEYLAXI) 



AGRICULTURAL EXPERIMEXT STATION. 



Bnlletiii N^o. 23. December, 1893. 



SOME INJURIOUS INSECTS OF MARYLAND. 



BY C. V. RILEY, Ph. D. 



IXTRODUCTIOX. 



This is the hrst of a series of bulletins which I hope to issue from 

 time to time upon the insects of ^Maryland. In my governmental Avork it 

 is my oljject to avoid threshing over old straw and republishing anything 

 that has been published before, as I conceive it to be the chief function 

 of the Department of Agriculture and its various Divisions, to prosecute 

 original research and to investigate those problems Avhich yet remain to 

 be solved. To a certain extent this I hope to do, as an officer of the 

 Station, for the entomology of Maryland; but for the present I feel that 

 it will be more productive of good to devote these bulletins primarily to 

 those insects which are most important to the farmers and fruit growers 

 of the State, by giving summaries of all the more important facts in refer- 

 ence to them, and dAvelling more particularly on the methods of counter- 

 acting their injuries. The average farmer has little use for detailed 

 descriptions of the forms of the minute life with which he has to deal, 

 and for their recognition it will be better to depend upon good illustra- 

 tions, with the barest indication of the colors and other salient character- 

 istics. The figures in this Imlletin, unless otherwise stated, are from my 

 own draAvings, or else from those made under my supervision. 



