University of the State of New York 



New York State Museum 



Frederick J. H. Merrill Director 

 Ephraim Porter Felt State entomologist 



Bulletin 53 



17TH REPORT OF THE STATE ENTOMOLOGIST 



1901 



To the Regents of the University of the State of yew York 



I have the honor of presenting herewith my report on the 

 injurious and other insects of the state of New York for the year 

 ending Oct. 15, 1901. 



General entomologic features. The forest tent-caterpillar, C 1 i s- 

 iocampa disstria Hiibn., as was predicted last year, has, 

 generally speaking, not been nearly so injurious the last season, 

 though in places here and there in the state, it has inflicted 

 considerable damage. Its abundance in orchards adjacent to 

 woods badly infested the previous year was a somewhat char- 

 acteristic feature of the attack this season. The common apple- 

 tree tent-caterpillar, Clisiocampa americana Fabr., has 

 also been abundant in different sections of the state, but it has 

 not been specially injurious as a rule. The white marked tus- 

 sock moth, Notolophus leucostigma Abb. & Sm., has 

 been quite harmful to the shade trees of Buffalo. The destruc- 

 tive work of the elm leaf beetle, Galerucella luteola 

 Mtill., has been continued in the Hudson river valley, and in its 

 northern part this insect has succeeded in extending its range 

 to a number of villages previously infested with very few or 

 none of these pests. The fall web worm, Hyphantria 

 c u n e a Drury, has been exceedingly abundant in portions of the 

 southern part of the valley and near the western end of Long 

 Island. The depredations of the Hessian fly, Cecidomyia 



