Dec. io t 1913 
Calliephialtes Parasite of Codling Moth 
229 
and of the depth of the host cocoon. The upper and lower sides and 
the end next the remains of the host, most frequently the cephalic end, 
are flattened, while the edges and the other end are more rounded. 
The cocoon is of a pale pinkish brown color, semitransparent, and 
is composed of a thin tissuelike material containing but few threads. 
It was found very easy to observe by transmitted light the devel¬ 
opment of the parasite in its cocoon. 
The period in the cocoon includes a part of the larval life, all of the 
pupal period, and a small portion of the adult life. By adding the 
minimums and maximums for each of these phases of development the 
total possible minimum period would be for females 14.5 days and for 
males 10.5 days and the total possible maximum period for females 39 
days and for males 50 days. The actual minimum and maximum for 
females were 15.5 and 37.5 days, respectively, and for males 11.5 and 
36 days. 
The duration of this period was determined for hi females and 396 
males. The weighted average duration of this portion of the life his¬ 
tory indicates that the females remain in the cocoon about four days 
longer than do the males. Table VII summarizes the data obtained. 
Eight females and five males, the recorded periods of which were far 
in excess of the normal for the month in which they emerged, are 
omitted from the table. 
Table VII .—Summary of period spent by Calliephialtes sp. in cocoon, showing number 
for each period by months, total for each period and each month, and average period for 
each month and for the season at Vienna, Va., IQ12. 
Period in cocoon. 
Number of females emerging 
in— 
Total 
num¬ 
ber of 
fe¬ 
males. 
Number of males emerging 
an— 
Total 
num¬ 
ber of 
males. 
June. 
July. 
Aug. 
Sept. 
June. 
July. 
Aug. 
Sept. 
11.5 days.... 
x 
I 
12 days.. .. 
12.5 days.... 
I 
I 
13 days. 
10 
x 
11 
13.5 days. . .. 
A 
I 
c 
14 days. 
4 
A 
0 
A 
14.5 days.... 
4 
2 
x 
4 
0 
15 days. 
O 
6 
6 
O 
21 
ic.c days.... 
I 
I 
y 
2 
6 
c 
14 
0 
0 
16 days. 
I 
I 
2 
c 
16 
38 
16. *; days.... 
I 
1 
J 
11 
11 
3 ° 
22 
17 days. 
2 
2 
8 
3 
29 
18 
58 
17.5 days. . .. 
13 
3 
20 
7 
43 
18 days. 
2 
2 
26 
2 
17 | 
5 
50 
18.5 days. . . . 
I 
I 
10 
1 
A 
2 
26 
19 days. 
2 
1 
1 
4 
20 
4 
7 
3 
3 ° 
iq. c days.... 
■2 
1 
A 
8 
12 
1 
e 
18 
20 days. 
2 
0 
2 
3 
T- 
I 
8 
11 
1 
0 
2 
3 
17 
20.5 days.... 
2 
4 
I 
7 
4 j 
1 
I 
1 
7 
21 days. 
6 
I 
4 
11 
' 1 
8 ! 
I 
1 
10 
