NEW YORK STATE MUSEUM 



may be given briefly as follows : the Hudson river valley north to Glens 

 Falls and westward to Schenectady, at least in the Mohawk valley and with 

 several colonies in the south and western central portions of the State. 

 These latter are of great economic importance as they indicate that the 

 species can exist in that section of the State, and gives rise to the fear that 

 in time it may become as destructive there as it now is in the Hudson river 

 valley. 



This insect has spread over a large proportion of Connecticut and into 

 Rhode Island. It had made its way up the Connecticut river valley to 

 Springfield by 1891 and to Amherst by 1895. It has now attained a rather 

 general distribution throughout Massachusetts. 



The above record indicates most clearly that this pest has not made its 

 way to all portions of New York State where it may be expected to thrive. 

 The climate of the upper austral life zone seems to agree with the insect, 

 judging from its abundance and the number of broods in Albany and 

 vicinity. Briefly, this area embraces Long and Staten islands, the valley of 

 the Hudson river north about to Saratoga and a large portion of the north- 

 western and central part of the .State adjacent to Lake Ontario and includ- 

 ing Oneida, Cayuga and Seneca lakes and neighboring bodies of water. 

 The insect will probably make its way along the lines of travel to most of 

 the cities and larger villages lying within the above limits. The fact of its 

 having become established at localities not yet included within this zone 

 indicates that it may have a somewhat wider range, though climatic condi- 

 tions will probably prevent its becoming destructive outside this area. 



Recent injuries about Albany. The elm leaf beetle was recognized in 

 Albany by the late Dr Lintner about 1892, having probably made its way 

 here a year or two earlier. Its ravages became more and more serious 

 from that time till 1897, when most of the European elms along our streets 

 were completely defoliated in early summer. The second growth of foliage 

 was seriously injured the same year and some trees had their third set of 

 leaves attacked. It was estimated in 1898 that fully 1000 elms had been 

 killed within the city limits by this pernicious insect and many more would 



