262 
to emerge till September 5, oviposition no doubt continued till about Sep- 
tember 15 and hatching till about September 25. Larve continued to 
leave the fruit till November 1, the date of the last observation. All the 
larve reared in cage No. 5 hibernated. 
BAND COLLECTIONS 
Hibernating generation, 1914-1915.—Hibernating larve were col- 
lected at Centralia and Olney April 12, 13, and 14. About 1400 were 
kept at Olney and the remaining 600 were kept under observation at 
Ozark, From 5 to 10 per cent. of the larve collected on the above dates 
had pupated. Judging from the time the first moths emerged, pupation 
began about April 9. Pupation was very irregular owing to variable 
weather conditions. It was at its maximum at Olney from April 22 to 
April 29, and continued till June 2. Larve kept under observation at 
Urbana, Illinois, 100 miles north of Olney, began to pupate April 20 and 
continued to pupate till May 24. 
The first moths emerged at Olney April 27, the maximum emergence 
occurred May 14 and 15, and moths continued to emerge till June 26. A 
record of pupation and emergence of adults at Olney will be found in 
Table 26. 
Collections made in 1915.—The bands used at Olney were two-ply 
burlap bands about 4 inches wide. They were placed on the trees about 
June 1 and examined daily until the first larve were found. After that 
they were examined every third day. When collected the number of 
males and females were recorded, and, at Olney, they were preserved for 
the purpose of observing pupation and emergence (Table 26). 
Larve of the first generation began to leave the fruit June 12. The 
maximum number were leaving the fruit about June 25. The larve of 
the first and second generations overlapped during the last week in July 
and the first week in August. Development was greatly retarded during 
August on account of unusually cool weather, and was greatly accelerated 
during the second and third weeks of September on account of unusually 
warm weather. These weather influences are indicated in the band 
records by the relatively small number of larvz collected during August 
and the large number during September. The falling off in band collec- 
tions after September 21 was due largely to the fact that apple-picking 
began at about that date. 
A daily record of the band collections, life-history observations, and 
climatic conditions at Olney in 1915 have Been brought together in Table 
26 for ready reference. 
