282 proceedings: entomological society 



Mr. ScHWARZ told of a monument erected to the boll weevil in Ala- 

 bama. 



Dr. Baker spoke of finding an aphid on chestnut at Falls Church, 

 Virginia, which was otherwise known to him only from one slide of 

 specimens taken on guava, and that it had since disappeared from 

 chestnut. This reminded Dr. Hopkins of a gnat that was discovered 

 associated with potato-scab that had never been rediscovered. 



Dr. Quaintance called attention to the change of habit of the codling 

 moth in attacking walnuts in California. It has become a serious 

 problem and is revolutionizing the industry. 



Dr. Hopkins stated that if an insect common to several hosts breeds 

 for a number of generations on one host it will not go to another. This 

 fact is taken advantage of in forest practice against certain scolytids. 



Dr. Craighead told of his experiments in transferring cerambycids 

 from one host to another and of the difficulty in inducing them to go 

 back to their normal hosts. 



Mr. Heinrich stated that the codling moth belongs to the most 

 plastic group in the microlepidoptera, and cited as an example the 

 eastern Evetria fntstrana, which if transferred to the western Jack pine 

 develops into Evetria bushnelli. 



Dr. G. P. Engelhart of the Brooklyn Museum was introduced by 

 the president and addressed the Society briefly concerning his work at 

 that institution. 



Mr. RoHWER criticised the lack of short notes by the younger mem- 

 bers of the Society. These men, he thought, being largely engaged in 

 field work, should have opportunity to make many observations of 

 interest and should present them at the meetings. 



R. A. CusHMAN, Recording Secretary. 



