Part ,VII] Beeson : Life History of Toon Borer 
21 
Date of Emergence. 
1914, 
1915. 
1916. 
Total 
number of 
moths. 
Number of 
moths. 
Number of 
moths. 
Number of 
moths. 
March— 
1st 
, , 
1 
1 
2nd 
3rd 
4th 
4 
*4 
5th 
, . 
. . 
6th 
6 
6 
7th 
i 
9 
10 
8th 
5 
5 
9th 
i 
9 
10 
10th 
23 
23 
11th 
28 
28 
12th 
i 
28 
29 
13th 
26 
26 
14th 
27 
27 
15th 
*i 
82 
83 
16th 
62 
62 
17th 
2 
i 
56 
59 
18th 
2 
27 
29 
19th 
*3 
# m 
21 
24 
20th 
3 
4 
17 
24 
21st 
4 
4 
8 
16 
22nd 
2 
5 
4 
11 
23rd 
, , 
6 
1 
7 
24th 
2 
4 
12 
18 
25th 
4 
4 
5 
13 
26th 
l 
3 
3 
6 
27th 
2 
1 
5 
1 
8 
28th 
, , 
4 
1 
5 
29th 
, . 
5 
, , 
5 
30th 
0 
2 
3 
, , 
5 
31st 
- 
•• 
3 
3 
April— 
1st 
# , 
2nd 
9 
2 
1 
3 
3rd 
, , 
4th 
3 
3 
5th 
, . 
6th 
# 
# 
1 
2 
3 
7th 
i 
1 
8th 
# 
, # 
*i 
1 
9th 
# . 
10th 
9 # 
. , 
11th 
. 1 
i 
1 
12th 
•1 
l 
1 
1915. In January and February, infested toon-shoots were 
collected for emergence records, but as this year was unusually cold a high 
percentage of mortality (c. 75%) among the hibernating larvae was 
[ 166 ] 
