96 Forty-ninth Report on the State Museum 



PAGE 



tion of the macbiue, 189. RefercDce to plates illustratiug the 

 machine, 189. 



Galerucella luteola, the Elm-leaf Beetle iu Albany 189 



Northward progress of the insect in the Hiulsou river valley, 189. 

 Its adveut in Albany, 190. Abundance in the summer of 1895, 190. 

 Transformations of the first brood, 190. A second brood observed, 191. 

 Not expected so far north, 191. More destructive than the first brood, 

 191. Detailed operations of the second brood, 191. Its great abund- 

 ance, 191. Descent of the larvae from the trees, 191. Pupation on the 

 surface beneath, 192. Latest dates of observation of the insect, 192. 

 Do many larvaj drop from the branches? 192. No indications of their 

 dropping observed, 192. Preference of the insect for different species 

 of elms, 193. The American elm almost free from attack, 193. Marked 

 preference for the English elm, 193. The Scotch elm rarely if ever 

 killed, 193. Slow spread of the insect, 194. Not known north of Albauj^, 

 195. Only a small portion of Albany infested in four years, 195. Paris 

 green spraying the most effective remedy, 195. Kftective spraying not 

 generally practicable by lessees or owners of city residences, 195. De- 

 struction of the larvfe and pupse recommended and urged, 196. Direc- 

 tions for the work, 196. A comparatively easy task, 196. Estimate that 

 niue-teuths of the descending larvie may be killed, 196. 



Galerucella cayicollis, a Cherry-leaf Beetle 197 



The beetles destructive to the foliage of a cherry tree at Ausable 

 Forks, N. Y., 197. Abundant in CauHda, 197. Observed in Michigan, 

 197. Distribution in the United States, 197. Erroneously reported as 

 G. sanguuiea, 197. An allied southern form, 197. G. crmco/^Js probably 

 single brooded, 197. Not previously known on the garden cherry, 198. 

 Feeds also on chestnut, 198. G. decora, a willow feeding species, 

 common in Keene Valley, 198. The larvae destructive to willows in 

 Washiugtou, ly8. 



Blissus leucopterus, the Chinch-Bug 198 



Seldom injurious in New York, 198. Its destructiveuess in St. Law- 

 rence county, 198. Receut operations in Allegany county, 198. Former 

 accounts of its hibernation incorrect, 199. Does not hibernate in rubbish, 

 corn fodder, under dead leaves, etc., 199. Its natural hibernating place 

 found to be in the dense stools of wild grasses, 199. Futility of former 

 recommendations of burning loose rubbish, 199. Grass lands where the 

 hibernation occurs should be burned, 199. How the burning should be 

 done, 199. 



