21 
Matured larve collected at Morgantown on July 3 produced moths 
on July 16-17. Matured larve collected at Elkins July 9 produced 
one moth on August 9. Therefore he thought that at low southern 
sections in his State the moth might be two-brooded, while at high 
northern sections (Canadian zone) a second brood would rarely, if 
ever, occur. He also was inclined to believe in the three-brooded 
theory for the South. 
Mr. Gillette suggested that it would be interesting for Dr. Hopkins 
to determine the number of broods of the codling moth in high alti- 
tudes as compared with low altitudes in his State. 
Mr. Gillette had found it impossible to determine the number of 
broods with certainty without actually breeding the moths. 
Mr. Ball stated that it took an apple a definite length of time to 
reach maturity and, in his opinion, this would determine the number 
of broods. The period of development of the fruit being the same 
North and South, it follows, in his opinion, that the number of broods 
would be the same. 
Mr. Felt, in speaking of the variability of broods, cited the elm-leaf 
beetle, which has one large brood, with a second brood when the foli- 
age is sufficiently fresh and tender to support it. He asserted that 
the second generation was produced from the adults of the first brood 
of larve. Trees infested with the second brood of larve would fur- 
nish adults which may fly to neighboring trees and develop a third 
generation. There may be, therefore, thrée well-defined generations 
under proper conditions. 
Mr. Gillette stated that the appearance of late foliage upon the 
trees could hardly account for the appearance of a third brood of the 
insects to feed upon them. He did not believe that an abundant food 
supply would cause the insect to pass through another generation. 
Mr. Hopkins stated that it is possible for the. number of broods 
of an insect to vary according to conditions. 
Mr. Felt agreed that favorable conditions would produce additional 
broods. The Hessian fly, for example, according to his notes, pro- 
duced an additional brood when weather conditions were favorable 
in late-sown barley. 
Mr. Gillette observed that if the codling moth is three-brooded 
anywhere it seemed as though it should be at Grand Junction, Colo., 
where the season is long and where there are both early and late 
apples for the insects to feed upon. Extensive observations in that 
locality, however, indicate that the insect is definitely two-brooded 
there. 
The following new members were enlisted: James A. Southwick, 
Providence, R. I., proposed by A. H. Kirkland; A. N. Caudell, Wash- 
ington, D. C., proposed by W. H. Ashmead. 
Mr. E. P. Felt proposed the name of J. J. Burden, Stanley, N. Y., 
and Dr. James Fletcher proposed the name of. Percy b. Gregson, 
Waghorn, Alberta. 
