(A) 

 LIST OF INJURIOUS APPLE-TREE INSECTS. 



In the " First Report on the Injurious and Other Insects of the State 

 of New York," in 1882, a list was given of the apple insects known in the 

 United States, numbering 176 species. It was then stated: — " The list 

 will, without doubt, be largely extended ; it is published at this time to 

 serve as a basis for future additions. An entire exploration of our ento- 

 mological literature might add nearly or quite fifty species, and careful 

 observation would unquestionably give us no inconsiderable number 

 which have not yet been recognized as apple insects." In 1894 with the 

 above as a basis, a list was published by Professor Lawrence Bruner, of 

 the Nebraska State University, entitled. — " Insect Enemies of the Apple 

 Tree and its Fruit," in which were enumerated 280 species. 



From the time of publication of the list of 1882, it has been steadily 

 growing by additions in MS., until as now presented it has more than 

 doubled its original extent — the number of known species being now 

 given as 356. 



It is hardly necessary to state that not all the species herein recorded, 

 are to be regarded as specially injurious to the apple-tree and its fruit 

 but as each one is known to make it, at times, its food-plant from choice 

 (many others will feed upon it in confinement), the least harmful among 

 them may at any time, through such sudden and inexplicable multiplica- 

 tion as is often witnessed in the insect world, become a serious pest. 



The authority for including the species in the list is given in each 

 instance. For convenience of those who may be willing to scrutinize the 

 list with a view of supplying omissions, the species have been arranged 

 under their several Orders in systematic arrangement. Additions to the 

 list would be gladly received as adding to its interest and value. 



