50 THE PLUM CTJRCULIO. 
Table XII. — Length of egg stage of the plum curculio, Washington, D. C, 1905. 
Eggs under 
observa- 
tion. 
Date of 
deposition. 
Approxi- 
mate length 
of egg stage. 
Total egg 
days. 
Average 
length of 
egg stage, 
by months. 
1 
40 
1 
60 
40 
30 
10 
May 8 
May 9-10. . 
May 9 
May 10-11. 
May 15.... 
May 18. . . . 
May 19. . . . 
Days. 
3.75 
3.75 
4.25 
4.00 
3.75 
5.00 
4.75 
3.75 
150.00 
4.25 
240. 00 
150.00 
150.00 
47.50 
Days. 
4.10 
2.88 
2.75 
182 
745. 50 
June 7 
June 14 
...do 
June 28.... 
...do 
4.00 
2.50 
2.75 
3.50 
3.00 
10 
22 
25 
1 
1 
40.00 
55.00 
68.75 
3.50 
3.00 
59 
170. 25 
July 1 
JulvH.... 
...do 
July 17.... 
2.75 
2.75 
2.75 
2.75 
2 
2 
1 
1 
5.50 
5.50 
2.75 
2.75 
6 
16.50 
Total number of eggs 247 
Total egg days 932. 25 
Average length of egg stage, days 3. 77 
Records of 140 eggs, covering the period from April 9 to June 16, 
1906, at Myrtle, Ga., are given in Table XIII. Although material 
under observation was kept in the laboratory, yet temperature con- 
ditions in this instance were not essentially different from those 
obtaining out of doors. 
Table XIII. — Length of egg stage of the plum curculio, Myrtle, Ga., 1906. 
Eggs under 
observa- 
tion. 
Date of 
deposition. 
Approxi- 
mate length 
of egg stage. 
Total egg 
days. 
Average 
length of 
egg stage, 
by months. 
Days. 
Days. 
1 
Apr. 9 
2.75 
2.75 
1 
...do 
3.00 
3.00 
1 
Apr. 11.... 
4.75 
4.75 
4 
Apr. 12.... 
4.25 
17.00 
8 
Apr. 15.... 
5.50 
44.00 
2 
...do 
6.75 
13. 50 
29 
Apr. 20.... 
5.25 
152. 25 
10 
...do 
5.25 
52.50 
38 
Apr. 27.... 
4.00 
152. 00 
11 
Apr. 30.... 
3.00 
33.00 
4.52 
105 
474. 75 
May 5 
5.75 
9 
51.75 
6 
May 20 
4.50 
29.00 
10 
May 31.... 
.3.25 
32.50 
4.53 
25 
113.25 
June 7 
3.00 
3 
9.00 
7 
June 16 
3.50 
24.50 
3.35 
10 
33.50 
Total number of eggs 140 
Total egg days 621. 50 
Average 1 ength of egg stage, days 4. 44 
