38 NEW YORK STATE MUSEUM 



where it formerly caused so much damage is presumably due largely 

 to well-directed control measures, which in some cases at least have 

 served to keep the insect within bounds for several years. 



Forest insects. The snow-white linden moth was sufficiently 

 abundant in portions of Otsego county to defoliate large areas of 

 woodland. The numerous moths appearing in Albany the latter 

 part of July probably originated from these areas. 



The white pine weevil has been abundant and injurious in young 

 plantings of white pine. It is one of the common pests breeding 

 freely in woodlands and presumably spreading readily into nearby 

 plantings; consequently the protection of these latter is rendered 

 difficult by the continual influx of weevils from adjacent forests. 



Lectures. The Entomologist has delivered a number of lectures 

 or participated in discussions and conferences on insects, mostly 

 economic species, before various agricultural and horticultural 

 gatherings, some of these being in cooperation with farmers' institutes 

 or county farm bureaus. A considerable proportion, owing to con- 

 ditions prevailing during the past two years, have related to the 

 European corn borer and its control. Some of the more important 

 of these in relation to the European corn borer are mentioned in 

 the outline of activities relating to this insect and given above. 



Gall midges. The 35 th report of the Entomologist contains 

 part VIII of " A Study of Gall Midges." It consists of a recapitu- 

 lation of our knowledge of this group and contains keys for the 

 separation of the genera of the world. This brings to a conclusion 

 an investigation which has been in progress as opportunity offered 

 for about .14 years and has resulted in systematizing the facts con- 

 cerning a large, complex and comparatively unknown family con- 

 taining a number of species of great economic importance. The 

 better knowledge of the group resulting from this investigation will 

 prove of very material service in determining the best methods of 

 controlling such species as are injurious or may become so in the 

 future. It is not planned to continue the extended investigations 

 of the gall midges, though somewhat incidental additions to our 

 knowledge of the biology and systematic relationships may be 

 expected in the future. 



The chrysanthemum gall midge, a serious pest first recognized 

 in this country by the Entomologist, has been reported in injurious 

 numbers from several localities in the State. 



Gall insects. The ' ' Key to American Insect Galls, ' ' State Museum 

 Bulletin 200, published in 19 19, was out of print within a few months 

 after issue and it is now very difficult to secure copies. The 



