LIFE HISTORY AXD HABITS : THE EGG. 
43 
Table VII. — Egg-laying records from. 4 pairs of the plum CurcuKo, Washington. 1). <'.. 
190o — Continued. 
EGG PUNCTURES MADE EACH WEEK BY EACH BEETLE. 
No. of pair. 
May 
n-i. 
Mav 
»-24. 
Mav 
25-3*1. 
June June June June 
1-7. S-14. 15-21. 22-28. 
June 
29- 
July 
5. 
Julv Julv Julv 
6-12. 13-19. - - 
Total. 
1... 
9 
.... 112 
:: 
51 
88 
54 
S 
11 
110 
70 
01 
13 
52 
39 
51 
41 
16 
44 12 
25 22 
26 
19 34 2 
i 
S 
B 
4... 
28 
28 

131 
Total. 
301 218 254 
136 12-5 
101 
•54 
Xo. of pair. 
Date last 
egg laid. 
Date of death PEES" *umb2Pof 
of beetles. | ° t fl: eggs laid 
per day. 
1 Julv 21 Aug. 2S«. 
• '-^r'S: 
3 "— * §SKSS::: 
* »-«»teS: 
» 110 
1 .".7 
139 
»39 
4.95 
0.19 
4.60 
3.23 
Male. 
1 Female. 
The beetles were captured at Arundel. Md.. on the 9th of May by 
jarring plum trees. All caught were inclosed together under a bell 
jar until May 11, when the pairs were separated and placed in indi- 
vidual jars. From three to five fresh plums were added at intervals 
of one to four days, and those taken out were carefully examined. 
After about June 10 apples and plums were used as most convenient. 
The insects were kept under a temperature considerably higher 
than out of doors, namely, in the insect ary building. The prolificacy 
of these individuals is not greater on the whole than in the case of 
those observed at College Park (Table III), but the death of pairs 
2, 3, and 4 was evidently hastened beyond what would occur under 
normal conditions. 
In every case more egg punctures were made than oviposited in. 
though the difference in the case of pairs 3 and 4 is less than with 
pairs 1 and 2. 
In the curculio egg record on peach. Myrtle. Ga.. 1906 (Table VIII), 
the beetles were captured by jarring. April 5, and taken in copulation 
some hours later. Each pair was separately confined in a jar and 
supplied with peaches until July 25. As all peaches had been gath- 
ered from the trees by this date, foliage was supplied subsequently, 
which fact no doubt hastened their death, as most individuals died 
within a few days. 
