179 



AFTERNOON SESSION. 



The meeting was called to order at 1.50. The following names were added to the 

 list of active members: C. L. Marlatt and Tyler Townsend, of Washington, D. W. 

 Coquillett, California; E. A. Popeuoe, Kansas; J. M. Stedrnan, New York; C. H. Fer- 

 nald, Massachusetts. The application of A. S. Packard of Rhode Island was referred 

 to a committee consisting of the president and the secretary, with power to act after 

 it shall have been ascertained whether Dr. Packard at present teaches economic en- 

 tomology. 



The following were elected associate members of the association : F. W. Gpding, 

 Illinois; T. D. A. Cockerell, Colorado; George D. Hulst, New York. 



Arthur E. Shipley of Cambridge, England, was elected a foreign member. 



The secretary was instructed in the case of the applications of F. H. Chittenden, of 

 New York, C. L.Eakin, of West Virginia, and George F.Whittemore, of Massachusetts, 

 to inform the applicants that according to the present information of the association 

 they are not entitled to associate membership. 



Upon the nomination of Mr. Cook, Mr. F. H. Hillman, of Nevada, and upon the 

 nomination of Mr. Forbes, Mr. John Marten, of Illinois, were placed on the rolls as 

 active members. Upon motion, a committee of three upon programme was provided 

 for, the president appointing Messrs. Howard, Cook, and Lugger. 



The secretary, on behalf of the Entomological Society of Washington, invited the 

 visiting entomologists to attend a meeting Tuesday evening at the residence of Dr. 

 William H. Fox, 1826 Jefferson Place. 



Mr. H. Garman read two papers entitled: (1) u Notes on a Corn Root-worm in 

 Kentucky ; " (2) il The Bordeaux Mixture as an Insecticide." The writer had discov- 

 ered that the Corn Root- worm of Kentucky is not Diabrotica longicornis, but D. 12- 

 punctata. He has studied its life history at some length and has discovered that it is 

 double brooded in Kentucky, and surmises that it hibernates as an adult. It affects 

 moist lands much more severely than dry lands, and the previous crop seems to have 

 little relation with the amount of damage, which is contrary to the state of affairs in 

 Illinois with D. longicornis. Its work is like that of the allied species, and many fields 

 were found to be severely injured. He described briefly the different stages of the 

 two species and suggested remedies. 



In his second communication he described the effect which treating potatoes with 

 the Bordeaux mixture had upon the Flea Beetle and upon the Margined Blister-beetle. 

 His experiments showed that potatoes treated with it were damaged much less by 

 both species than were portions of the crop which were untreated. 



In discussing these papers Mr. Riley stated that the transformations of D. VZ- punctata 

 and its corn-root feeding habits had been known to him for some years, the species 

 being included among the divisional notes at the Department. Mr. Forbes had ex- 

 perienced the same thing in Illinois and stated that in small fields the yield had been 

 reduced 20 per cent. He also had found only one brood in Illinois. He stated the 

 curious fact that occasionally larvse were found of a red color, in which micro- 

 scopic examination revealed a Bacillus, which he had succeeded in cultivating and is 

 now growing in culture tubes. -The culture medium is stained red, and this is due to 

 a diffusion of color and not to penetration of the Bacillus. Mr. Riley stated that 

 the adults of Diabrotica unquestionably hibernate. Mr. Pergande stated that he had 

 found D. 12-punctata in the neighborhood of Mount Vernon some years since, feeding 

 very abundantly upon the roots of corn. 



Mr. Lintner, in discussing Mr. Garman's second paper, called attention to the dis- 

 tinction between "insecticide" and "preventive measures," and hardly thought that 

 Mr. Garman could call the Bordeaux mixture an insecticide in the case he had men- 

 tioned. 



Mr. Garman stated that he considered Mr. Lintner's point well taken, and that 

 he was really not certain that the insecticide effect of the mixture was as great as its 

 preventive effect, He had proved, however, upon a small scale in confinement that 



