Insects Injckious to the Potato and Apple. 565 



as to their destruction, would be of very gi-eat value to the 

 people of tlie State, as well as a like enuinoration and des- 

 cription of tliOKu ipBcfts t!iat ;a .' Uhcful, it is impossible to 

 do this in a few pages, tro.ii a eonsiderahlf^ quantiry of 

 material I have selected, as being most useful, the accounts 

 that follow, believing that a tolerably thorough treatment 

 of those insects that attack the potato and the apple, two of 

 our most injportant crops, would Ije of greater value on the 

 whole than less complete accounts of a greater number of 

 insects, hoping tliat tliere may hereafter be opportunity to 

 extend the subject over a wider field. 

 In considering 



I^'SECTS I-\J LKIOLS TO TilE POTATO 



we must enumerate (juite a number of different species^ 

 some of them far more injuriou.-, than otliers, but all worthy 

 of careful study. I propose to mention nearly all tlie dif- 

 ferent in.sects that have M'itliin tlie last few years done any 

 considerable damage to the potato in the Xc^rtliorn United 

 States. Some of these never have, and j>robably never will 

 enter this State, the climatic or other conditions being too 

 unfavorable. Others, though never yet found among us, 

 may appear at almost any time, while yet others have been 

 known in the State as long as the vegetable ha.-: been culti- 

 vated. 



Of course it will be best to devote most of our attention 

 to such species as are most likely to affect our own crops. 

 Among the Lepidoptera — the group embracing moths and 

 butterflies — there are several species that do more or less 

 damage to the potato, although not usually very troublesome 



