84 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TasLe XVII.—Larve of the first brood. Percentage of transforming and wintering 
larvx of cage material. 
Number of larve. Number of larvee. | 
| 
Cage No. ® fy, || Cage No. | A 
rans- inter- rans- | Winter- : 
forming.| ing. Total. forming.| ing. Total. 
Wiese cee il 7 18 ik eee 5 17 22 
ES Le EE 4 3 Mae eo Saella cure meets 
Sema 9 8 17 INE eee |e a 7 7 
A eee 9 6 15 Le eee || ee eae 12 12 
ee pes 3 14 18} 27 1 A Beto, | Seen eaee epee 
Gane See 9 27 36 18355555 MOM Es 19 19 
oreo ae 2 17 19 ee 1 8 9 
Si oe 5 14 19 
Oh ane 7 13 Total 85 199 284 
LOwcee Sees 5 11 16 ———————— 
1 eee aS 2 5 7 Percent..| 29.93 70. 07 100. 00 
PARSE 2 4 6 
Time of maturity of transforming larve.—F rom apples collected in an 
orchard July 8 the first larvee emerged July 10, while from banded 
trees larvee were obtained three days later. In the rearing cages 
the last transforming larva left the fruit August 14. (See Tables 
XXII and XXXIITI, and fig. 22.) 
Time of maturity of wintering larve.—Of the band record material of 
1909 two larvee, which had been collected July 19, did not transform 
with the rest of the brood, but remained in the larval stage and 
wintered. The second-brood larve first appear about September 10. 
(See fig. 22.) On examining the results of the band records, as pre- 
sented in figure 21, it will be noted that the greater number of larvee 
belonged to the first brood, and that the period of maturation of 
these larvee extended from early July to the close of September, or 
perhaps even to the early part of October. 
Percentages of transforming and of wintering larve of the first brood.— 
In Table XVII is given a summary of breeding experiments, showing 
the comparative number of transforming and wintering larve of the 
first brood. From these observations it will be found that in number 
the wintering larve exceeded the transforming larvee about two and 
one-half times. These results agree closely with those obtained from 
the band material, which is a better test of the relative occurrence 
of larvee in the field. (See Table XXXIV.) Of the first brood 23.46 
per cent of the larve transformed and 76.54 per cent wintered. 
Considering the two parallel records of both cage-reared larve, the 
first brood consisted thus of one-third of transforming larvee and 
two-thirds of wintering larve. 
