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NEW YORK STATE MUSEUM 



our previous report. Points where this insect was likely to become 

 established have been closely watched and as yet it has not been 

 found in this State. A warning placard, illustrating this species 

 and the brown tail moth, has been conspicuously posted in many 

 post offices and other public places in the State. Prompt and 

 efficient treatment of isolated colonies, should they be found in this 

 State, is of utmost importance if extended injury is to be avoided. 



The work against the gipsy moth in Massachusetts, as revealed 

 by a personal examination the past summer, is being prosecuted 

 with great vigor. The residential sections are in excellent condi- 

 tion, though large woodland areas have been seriously damaged. 

 The work with parasites, conducted by that state in cooperation 

 with the federal government, is most encouraging. The staff in 

 charge of this work has been materially strengthened during the 

 past year, and its efficiency increased by the dispatch of a special 

 agent to Japan, who secured some promising parasites which al- 

 ready have been bred through one generation in this country, and 

 lead to the hope that they may soon become important factors in 

 controlling this species. The control of the gipsy and brown tail 

 moths should be encouraged in every possible manner, since it is 

 much more economical to check them in a restricted area than to 

 allow the struggle to extend over a wide territory. 



Forest insects. The extensive outbreaks by the green striped 

 maple worm, recorded in our previous report, have been continued 

 in southern Rensselaer county, and it is probable that this species 

 was associated, as last year, with the antlered maple caterpillar. 

 The depredations by the snow-white linden moth, also noticed in 

 our preceding report, were continued in the Catskills and extensive 

 injuries in the Adirondack's were also brought to our attention. 

 The only hope of preventing damage of this character is by the 

 encouragement of natural agents, prominent among which may be 

 mentioned native birds. The efficiency of insectivorous birds has 

 been repeatedly emphasized by the Entomologist. 



The bark borers or Scolytidae comprise a large number of very 

 destructive species. The literature relating to this group is greatly 

 scattered and comparatively inaccessible, hence a bibliographic cata- 

 logue is a necessary preliminary to further work upon these insects. 

 We have submitted, as an appendix to the Entomologist's report, 

 a catalogue of the described Scolytidae of America north of Mexico 

 by Mr J. M. Swaine. 



