238 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 11 
weather is getting cooler and the cotton plants are ripening, this time 
is somewhat extended. 
The moths are very rarely to be seen in the fields, although they 
may be there in enormous numbers. They hide during the day and 
it is practically impossible to disturb them into flight. At night, prob¬ 
ably in the two or three hours immediately following sunset, they are 
active. It is at this time that feeding, pairing of the sexes and egg 
laying take place. 
In Egypt, experiments have shown that the moth is attracted to 
light. In Hawaii, Mr. August Busck found that the moth was not 
attracted to light. 
The following tables give the figures showing the number of moths 
captured by single light traps in two different situations. Light traps 
in the field, however, have not given any results in the control of at¬ 
tacks by this insect. 
Table Giving Numbers op Gelechia Moths Captured in Light Trap in Insectary at Ministry of Agriculture, 
from Cotton Bolls, in Heap on the Ground and in Trays, from April 2 Onward. The Trays and Bolls 
Contained in Them were Removed May 3 to Another Room. From May 4 the Trap was Alternated in 
Four-day Periods between No. I Room Containing Heap on the Ground and No. 2 Room Containing Bolls 
in Trays. 
Day 
May 
June 
July 
August 
of 
April 
1 
2 
1 
2 
1 
2 
1 
2 
Month 
1 
No light 
] No light 
3 
2 
26 
2 
68 
}• experiments 
, , 
1 
2 
15 
. . 
3 
33 
with baits 
1 
. , 
0 
13 
. , 
4 
41 
41 
1 
2 
, m 
0 
5 
20 
58 
28 
# , 
1 
, , 
1 
6 
7 
} 
90 
69 
60 
9 
9 
'2 
1 
1 
4 
8 
54 
9 
11 
3 
# . 
0 
9 
42 
3 
1 
1 
54 
10 
45 
3 
1 
6 
35 
11 
73 
4 
1 
# . 
6 
34 
# 9 
12 
50 
120 
0 
0 
37 
# , 
13 
} 
88 
45 
0 
, , 
1 
, . 
1 
14 
46 
13 
1 
. , 
2 
15 
16 
1 
\ 
250 
60 
2 
} 
7 
9 
4 
3 
0 
17 
J 
2 
. . 
0 
4 
si 
. . 
18 
150 
2 
, 9 
2 
7 
30 
, , 
19 
103 
3 
, . 
0 
, , 
1 
38 
. , 
20 
\ 
93 
84 
0 
, , 
2 
29 
, * 
21 
J 
27 
13 
, , 
, # 
1 
, , 
0 
22 
23 
167 
254 
19 
53 
I 
5 
‘8 
1 
2 
1 
24 
331 
6 
3 
11 
# , 
1 
25 
300 
1 
. , 
0 
15 
97 
. . 
26 
168 
0 
. . 
3 
13 
, , 
35 
, . 
27 
10 
0 
. . 
0 
, # 
1 
40 
. . 
28 
50 
79 
0 
, , 
0 
32 
29 
72 
18 
. 
5 
, , 
0 
. . 
6 
30 
50 
19 
2 
. , 
1 
# , 
0 
31 
19 
51 
1 
1 
Total 
2,602 
827 
29 
105 
14 
138 
13 
596 
18 
The light trap used in obtaining the catches recorded in both these 
tables consisted of an electric light bulb suspended above a pan of 
