12 
BULLETIN 571, U. S. DEPARTMENT OF AGRICULTURE. 
Table X —Length of egg stage of the pecan leaf case-bearer at Monticello, Fla., in 1915. 
Number of 
eggs from 
Date of 
Date of 
Length of 
egg stage. 
which lar- 
vae emer- 
oviposi- 
tion. 
hatch- 
ing. 
ged. 
1915. 
1915. 
Days. 
1 
July 17 
July 23 
6 
1 
...do.... 
Julv 24 
7 
4 
July 18 
July 26 
8 
18 
July 24 
Aug. 1 
8 
1 
...do.... 
Aug. 2 
9 
7 
July 31 
Aug. 6 
6 
60 
...do.... 
Aug. 7 
7 
2 
Aug. 4 
Aug. 11 
i 
23 
Aug. 5 
Aug. 12 
7 
1 
...do.... 
Aug.13 
8 
Maximum 
Minimum 
Average fc 
9 
6 
7.14+ 
r 118 individuals.. 
It will be noted from Table V that the average length of the egg 
stage for 118 individuals was 7.14 days, the maximum 9, and the 
minimum 6. 
THE PUPA STAGE. 
Of the larvae under observation that transformed to pupae during 
1913, the first pupated on April 20, while during 1914 and 1915 the 
first pupae did not appear until May 5. During the season of 1914 
the actual time of earliest pupation was, perhaps, a trifle earlier 
than recorded, since in cages in which only the daily emergence of 
moths was observed the dates of pupation were not taken, and some 
moths from the cages issued as early as May 15. It is very likely 
that some larvae in these cages transformed to pupae during the last 
few days of April. 
During the year 1913 the length of the pupa stage was determined 
for 66 individuals, as is shown in Table VI: 
% 
Table VI. — Length of pupa stage of the pecan leaf case-bearer at Monticello, Fla., during 
1913. 
Date of — 
Date of— 
Number 
of indi- 
viduals. 
Days as 
pupa. 
Number 
of indi- 
viduals. 
Days as 
pupa. 
Pupa- 
tion. 
Emer- 
gence. 
Pupa- 
tion. 
Emer- 
gence. 
1913. 
1913. 
1913. 
1913. 
1 
Apr. 20 
May 13 
23 
1 
May 21 
June 8 
18 
2 
Apr. 25 
May 15 
20 
2 
...do.... 
June 9 
19 
1 
...do.... 
May 16 
21 
3 
...do.... 
June U 
21 
1 
May 2 
May 21 
19 
1 
...do.... 
June 12 
22 
2 
...do.... 
May 22 
20 
1 
...do.... 
June 13 
23 
1 
May 4 
May 24 
20 
2 
May 22 June 11 
20 
2 
May 6 
...do.... 
18 
2 
...do 1 June 12 
21 
2 
May 8 
May 28 
20 
1 
. ..do. . .. June 13 
22 
1 
May 9 
May 27 
18 
1 
May 23 
June 15 
23 
1 
...do.... 
May 31 
22 
2 
May 27 
June 17 
21 
1 
May 11 
May 30 
19 
2 
May 29 
June 19 
21 
1 
...do.... 
June 1 
21 
1 
Mav 30 
June 20 
21 
4 
May 12 
June 2 
21 
3 
May 31 
...do.... 
20 
1 
May 13 
...do 
20 
1 
June 1 
June 21 
20 
3 
May 14 
June 3 
20 
1 
...do.... 
June 23 
22 
1 
...do.... 
June 5 
22 
2 
June 2 
...do.... 
21 
1 
May 15 
May 19 
19 
5 
June 7 
19 
2 
3 
3 
...do.... 
...do.... 
May 20 
June 8 
June 9 
June 6 
20 
21 
17 
19.89 
23 
Minimu 
17 
1 
...do.... 
June 8 
19 
