LIFE HISTORY AND HABITS: THE ADULT. 
107 
Table LV. — Comparison of number of feeding and egg punctures of the plum curculio 
from various localities. 
Siloam Springs, Ark., 190S. 
Washington, D. C, 1905. 
Pair No. Feed- F 
; ^ punc- 
punc- j™ 
1 tures. tureb - 
Feed- 
Length oflife. p j£f c _ 
tures. 
Egg 
punc- 
tures. 
Length of life. 
1 549 
2 477 
3 85 
4 261 
5 j 195 
61 
57 
16 
25 
23 
20 
60 
7 
31 
15 
May 13 to Sept. 15 273 
May 13 to July 2s 311 
May 13 to May 29 165 
May 13 to June 28 280 
May 13 to July 8 
289 
616 
131 
350 
May 11 to July 3-6. 
May 11 to Aug _• 
May 11 to June 1*. 
May 11 to July 7. 
6 295 
May 13 to Sept. 9 
7.i 267 
May 13 to July 31 
8 - 39 
May 13 to May 24... 
9 409 
May 13 to Aug. 20 
10 295 
May 13 to July 17... 
Total 2.S72 315 
1.029 
1,386 
1 
Pair No. 
Myrtle. Ga.. 1906. 
Feeding 
punc- 
tures. 
Egg 
punc- 
tures. 
Length of life. 
Male 
died— 
1 
2 
3 
4 
5 
6 
7 
8 
Total 
160 
110 
217 
147 
152 
146 
150 
211 
1.293 
138 
29 
191 
■' 
11^ 
44 
82 
133 
Apr. 6 to July 30 
Apr. 6 to June 5. 
Apr. 6 to July 26 
Apr.6(?) 
Apr. 6 to Aug. 9. 
Apr. 6 to June 26 
Apr. 6 to June 18. 
Apr. 6 to Aug. 10 
814 
May IS 
July 29 
July 24 
July 20 
July IS 
June 2 
June 18 
Aug. 20 
It will be noted that in two instances feeding punctures consid- 
erably outnumbered the egg punctures.- For Arkansas the ratio 
is about 9 to 1, and for Georgia about U to 1, indicating considerably 
less feeding on peaches in proportion to egg laying than in the case of 
apples. The Washington records show a larger number of egg than 
feeding punctures, but these specimens were kept under temperature 
conditions abnormally high, which probably stimulated oviposit ion, 
as elsewhere stated. 
ACTIVITY OF THE BEETLES IX EGG LAYING AND FEEDING, BY DAY 
AND BY NIGHT. 
Information on the relative activity during day and night of the 
beetles in oyiposition and in feeding is meager. Riley ' states that 
the curculio is nocturnal rather than diurnal, as regards the period of 
flight, and affirms that it is far more active at night than during the 
day. He further adds that, with the exception of such females as are 
engaged in egg laying, most of the curculios rest during the day, 
sheltered by the foliage or branches of the tree or convenient trash or 
the ground. 
1 Third Missouri Report, p. 14. 
