LIFE HISTORY AND EABITS : THE PUPA. 
79 
Table XXXVII. — Length of time spent in the .soil by the plum curculio, Washington, 
D. C, 1908— Continued. 
Dates larvae entered 
soil. 
Adults emerging in specified days from time of entering soil by 
larvae. Total 
adults. 
Total 
spent 
in soil. 
37 
38 39 
40 
41 
42 
43 
44 4.5 46 
47 
51 
52 
53 
54 50 insoil 
June 24 
11 
25 
13 
26" 

27 
14 
28 

31 
29 

i-i 
30 
21 
Total 
10 IS 26 21 
5 
3 10 3 4 3 3 
2 
777 
24.354 
Julv 1 
I 
8 

9 

3 
14 
4 
9 
5 
6 
6 
2 
8 
2 
... 
1 

11 
3 
10 
1 
1 
2 
13 1 
1 
2 
1 1 
i 
2 2 
86 
2. 300 

20 45 43 26 8 
9 8 |ll | 5 j i - - 
l 
4 12 1,114 | 35.507 
1 No beetles emerged. 
Average time spent in the soil during May days.. 35.15 
Average time spent in the soil during June do 31.34 
Average time spent in the soil during Julv do 
Average time spent in the soil for season .' do 31. 09 
Data obtained by Mr. Hammar at Douglas. Mich., during 1910 are 
shown in Table XXXVIII. A decided lengthening of the period is 
evident, the range being from 27 to 58 days, with an average for all 
individuals of 36.32 days. A total of 177 adults was reared from 
207 larva?. 
Table XXXVI 1 1. —Length of time spent in the soil by the plum curculio, Douglas, 
Mich., 1910. 
Datelarvjv en- 
tered soil. 
Larva\ 
Adults emerging in specified days from time of entering soil 
by larva-. 
Total 
adults. 
Total 
days 
spent 
in soil. 
27 
28 
29 
'2 
2 
30 
31 
32 
33 
3 
] 
2 
! 
M 
1 
1 
1 
1 
1 
3 
12 
3 
i 
i 
9 
36 
■_> 
3 
"a 
10 
10 
37 
2 
2 
3 
3 
3 
4 
3 
1 
17 
38 
2 
3 
4 
3 
2 
1 
I.", 
39 
1 
1 
1 
40 41 
!_' 
"l 
1 
3 
2 
1 
43 44 15 47 
2.... 2 
'2 
-• 
- 
1 
1 
50 
1 
1 
58 
1 
June 24 
6 
10 
11 

10 
29 
30 
Total 
Julvl 
" 2 
3 
4 
2 
2 
3 
2 
■_> 
27 
37 
24 
19 
18 
i 
"i 
2 
2 
"i 
i 
j 
2 
"2 
2 
4 
i 
'3 
•• 
•- 
4 
l 
i 
i 
3 
1 
6 

i 
"2 
2 
.1 
6 
71..1 1 
2 
37 
19 
19 
13 
8 
4 


9 
9 
42 
12 
10 
:::: 
:::: 
8 
2 2 
10 
1 
13 
20 
25 

"i 
Total 
180 
IX 
21 29 
155 5,585 
Total for 
season 
207 
10 
22 
32 
» 
,, 
Hi 
■ 
: 
9 
.. 1 
I 
177 
Average time spent in ground during June 
Average time spent in ground during Julv 
Average time spent in ground during season 
