- 
2 
THE PLUM CURCULIO. 
TasBLE VI.—Egg-laying records from 10 plum curculios, North East, Pa., 1906. 
Eggs laid each week by each beetle. 
No. of individual. May June Total. 
May} 30- | June} June! June} 27- | July | July | July | July | Aug. 
23-29. | June | 6-12. | 13-19./20-26. ous 4-10. |11-17. |18—24. |25-31.] 1-7. 
5. c 
TER ia See Mee ae 9 12 14 8 7 1 Sie eae earn saeoe a Le 2 54 
bob nye sre yalere ainin ave ee since weet 33 16 16 (ONE 1 4 6 Ga}e-eexe 1 90 
Bectate en eaten pace eee 33 13 20 8 8 7 A SRS Sele Sac Se see | ee 93 
NEES Gite Mette ie a See) 2 30 17 5 2 ee De| 00 as | eee | eee 62 
[ROR ER eee as. USS 2) 2 3 30 11 7 7 2 3 3 Die wes 102 
6osse See 2 56 25 22 9 al pete ares eee err! [ase 122 
NN lo isl (Sins nt 6 16 8 7 7 2 ily Sc ate | eee 71 
a ea eee Ae) Leta 1 24 12 6 4 3 A Se | erate) (Merce | Uy Sk Oe 66 
9) oo cad eo eee se eae pence 3 28 12 7 be Baeerse 13 7 3 1 79 
TOSS ee ee aes | ee Bt 7 1 1 AN nooo 9 12 Sie eee 48 
Total® i= oso eee 81 183 197 94 54 48 18 66 36 8 2 787 
Date last| Date of |Days under} Dayson | Sumber of | numberof 
No. of individual. Se IBAA death of | observa- | which eggs Bonen oops al 
88 lac. | beetles. tion. were laid. aa any ss doy 
he trate 5. ae eee ae July 10 Weant ae e \ 30 6 1.80 
1 1 14 
Serene 12 a ht enna to Aug. 4 {Ae ops 298 |} 32 16 2.81 
_jopeam el A hme oe Telyw ae et 32 15 2.91 
July 13 52 ; 
UAE Ge oon en s HOSE OES no Tne eeme see July 14 ae 14 53 \ 26 6 2.40 
INN oN FT) a July 26 AUB. 16 salt 37 ul 2.76 
Aug. 13 83 
6 ed July 2 Ge 16 86 \ 32 16 3. 81 
141 123 
aie SPR a DS Prod July 22 {juny Aa ae 34 4 2.09 
July 18! 127 
(HERE pope se cea Sac soscrsSoqae oars July 15 {july 262 2 65 \ 28 7 2. 36 
Dore Peek een aug. 1 gee a | 35 6 2. 26 
Ne aed eae Sn es ees ee July 26 {TY 35 AN 22 5 2.18 
1 Male. 2 Female. 
In Table VII are records 
of eggs laid and of egg punctures by four 
pairs of beetles kept in the insectary at Washington in 1905. 
Taste VII.—Egg-laying records from 4 pairs of the plum curculio, Washington, D. C., 
1905. 
EGGS LAID EACH WEEK BY EACH BEETLE. 
No. of pair. 
May | May 
. | 18-24 | 25-31. 
109 
60 
65 
8 
242 
June | June | June | June 
8-14. | 15-21.) 22-28. 
dT. 
40 
44 
37 
32 
153 
128 
June 
29- 
July 
a: 
July | July | July 
6-12. |13-19.| 90-96,| Total. 
