240 JOURNAL OF ECONOMIC ENTOMOLOGY , [Vol. 14 



Scientific Notes 



Possible use of a trap to control Leafhoppers Injurious to Fruit Trees . During 

 the past season in the study of flight and attraction to baits of adults of the European 

 Corn-Borer, at Arlington, Mass., traps were used closely following the "Shaw" 

 moth trap illustrated on Plate 54 of "The Gypsy Moth Report," 1896, by Forbush 

 and Fernald. Instead of female moths, baits were placed in the screen cylinder 

 in the center of the cage. These cages have the advantage of presenting twelve 

 distinct tanglefoot surfaces to catch attracted insects. 



It so happened that one of these cages containing, as an attractant, macerated 

 grape-fruit was placed in a large apple tree severely infested by Empoa rosae, the rose 

 and apple leafhopper, June 23, 1920. 



Several days later this cage was completely covered with thousands of adults 

 of the leafhopper. The trap was placed on the trunk of the tree four feet from the 

 ground and at least three feet below the nearest foliage, so that chance may practi- 

 cally be eliminated in explaining the capture of the insect in such numbers. 



The traps are easily and cheaply constructed. Entomologists interested in the 

 problems of leafhoppers injuring fruit trees, may perhaps, find such a trap of assist- 

 ance in the control of these insects. 



Geo. W. Barber, Cereal and Forage Insects Division, U. S. Bureau of Entomology. 



THE ENTOMOLOGICAL SOCIETY OF LONDON APPEALS FOR AID 



The fine old Entomological Society of London, founded in 1834, and which, since 

 1875, has been meeting at 11 Chandos vStreet by the courtesy of the Medical Society 

 of London, has, through the growth of its library, outgrown its quarters and is practic- 

 ally forced to move. It has bought a house at 41 Queen's Gate, South Kensington, 

 near the Natural History Museum, and is leasing a portion of the building to the 

 Imperial Bureau of Entomology. The cost price of the property was ten thousand 

 pounds, ai additional sum is required for furnishing. 



The cost price has been largely met by subscriptions from members, both as 

 donations and as loans, the loans being secured by a debenture on the property and 

 bearing five per cent, interest. After exhausting the available resources of the 

 resident members, there still remains a sum appro imating fifteen hundred pounds, 

 and the Society is making an appeal to foreign members, to entomologists in the 

 dominions, and to interested entomologists in other parts of the world. Donations 

 and loans are received by the Treasurer of the Society, Mr. W. G. Sheldon, who may 

 be addressed at 11 Chandos Street, Cavendish Square, London, W. 1. 



The London Society is the oldest of the great entomological societies excepting the 

 Entomological Society of France which was founded a year earlier. Its Transactions 

 and Proceedings have been largely used by American entomologists, and many of 

 the latter when traveling abroad have been welcomed at the meetings of the Society 

 and have cordially been given the use of the magnificent library. — L. O. H. 



