REPORT OF THE STATE ENTOMOLOGIST 1902 117 



task. The insect is now becoming more and more abundant, has 

 established itself in Rhode Island and is gradually extending its 

 range. The brown tail moth, Euproctis chrysorrhoea 

 Linn., has also become established in that state, is known to occur 

 in New Hampshire and Maine and is rapidly extending its range. 

 The elms of that commonwealth are seriously injured by the 

 imported elm leaf beetle, Galerucella luteola Mull., which 

 has made its way over a considerable proportion .of the state 

 and is being assisted in its destructive work by the imported elm 

 bark louse, Gossyparia ulmi Geoff. It would seem as if 

 this might be sufficient, but apparently not, since the dreaded 

 San Jose scale, Aspidiotus perniciosus Gomst., is also 

 established in a number of localities in that state and is proving 

 true to its reputation in other places. 



The condition of Ncav York State is not much happier than 

 that of its sister commonwealth, though as yet it is free from 

 the gipsy and brown tail moths. Our elms, however, are badly 

 injured from year to year by both the elm leaf beetle and the 

 elm bark louse, and the shade trees in the vicinity of New York 

 city are seriously ravaged by another imported insect, the leopard 

 moth, Zeuzera pyrina Linn., a species which thrives in a 

 large number of trees and when not checked inflicts extensive in- 

 juries. Our fruit trees are suffering here and there from exces- 

 sive infestation by San Jose scale. The pear psylla, P s y 1 1 a 

 p y r i c o 1 a Forst., occasionally inflicts great injury on this fruit 

 tree in various portions of the State. 



In the South, we find the cotton boll weevil, Anthonomus 

 g r a n d i s Boh., threatening the cotton crop of Texas, while the 

 harlequin cabbage bug, Murgantia histrionica Hahn., has 

 established itself in numbers in most of the southern states and 

 is proving an exceedingly serious enemy of cruciferous crops. 

 The imported peach scale, Diaspis pentagon a Targ., is 

 another recent introduction which has become established in 

 several localities in the southern states and bids fair to rival in 

 destructiveness the San Jose" scale. It is also established in one 

 or two localities in the north. 



These are all insects which have been introduced into this 

 country within comparatively recent years and which are proving 

 pests of first importance. It is interesting in this connection to 



