314 
IOWA ACADEMY OF SCIENCE 
give a fair statement of the life history during the summer months. When 
the larvae matured and left the apples they were transferred to jars of 
soil to rear the beetles. 
June 23 several mature larvae were found that had emerged from 
apples collected June 13. By July 8 larvae were maturing and emerging 
from the apples in considerable numbers. The last record of emergence 
of a mature larva is August 8. 
The emergence of 88 larvae from the apples was recorded and this 
is given in the following table : 
TABLE i. 
Emergence of Larvae, 1910. 
30 
Larvae 
1 
July 
20 
Larvae 
1 
1 
0 
21 
0 
2 
0 
22 
0 
3 
0 
23 
2 
4 
0 
24 
0 
5 
3 
25 
0 
6 
* 0 
26 
0 
7 
4 
27 
2 
8 
15 
28 
3 
9 
0 
29 
1 
10 
6 
30 
0 
11 
8 
31 
0 
12 
4 
August 
1 
2 
13 
5 
2 
0 
14 
4 
3 
0 
15 
3 
4 
1 
16 
7 
. 5 
0 
17 
7 
6 
1 
18 
1 
7 
2 
19 
4 
8 
1 
In 1889 Gillette reared beetles from early stung plums as early as 
July 22. In 1910 the first beetles emerged July 26 and continued emerg- 
ing during August even into September, the last beetle coming out Sep- 
tember 10. In table II the emergence of 47 beetles is given, according 
to the daily insectary records. 
