496 Report of the Department of Entomology. 



be effected by systematic spraying during the months of July and 

 August with arsenate of lead at the usual strengths for foliage treat- 

 ment. 



ACKNOWLEDGMENTS. 

 For notes on habits and distribution and for assistance in collecting 

 material on Long Island, we are indebted to Mr. W. T. Davis, 

 Staten Island. The identifications of parasites were made by Mr. 

 A. A. Girault, formerly of the University of Illinois and Mr. J. C. 

 Crawford of the U. S. Bureau of Entomology. Mrs. L. L. Van Slyke 

 kindly furnished notes on the musical qualities of a number of tree 

 crickets, and Messrs. W. E. Rumsey and L. M. Peairs of the West 

 Virginia Experiment Station and Mr. W. J. Schoene, State Ento- 

 mologist of Virginia, procured for us specimens of living insects 

 and infested wood, for which courtesies we are under obligations. 



