86 THE PLUM CURCULIO. 
These individuals were also kept in vials under out-of-doors 
conditions. The average of the 68 examples for the time spent 
in soil previous to pupation is seen to be 12.03 days; for the pupal 
stage, 14.12 days; and an average of 7.10 days was spent in the 
soil before exit of adult, after transformation. The average of 
the total days in the soil for ail stages is 33.28 days. The range 
in time in soil before pupation is from 7 to 19 days. The range 
for the pupal stage is from 9 to 19 days; and for the beetle in the 
earth, 3 to 13 days. The entire time spent in the ground varies 
from 28 to 39 days. 
Similar data from Barnesville, Ga., obtained during 1910, are 
shown in Table XLII. Records for 38 individuals were obtained 
from May 20 to July 11, when the last beetle left the soil. The 
insects were placed in glass-bottomed boxes containing a shallow 
layer of sand and kept in a dark box under shade out of doors. 
Taste XLIII.—Length of pupal instar of the plum curculio and time spent in the soil as 
larva and as adult, Barnesville, Ga., 1910. 
Days in 
Date Date of aoe Date ae al Days in | Days as Total 
Individual No. larva left} pupa- Sain aa beetle left adie pupal beetle days in 
fruit. tion. | to beetle.| the soil. Sep puree stage. in soil. soil. 
tion. 
May 20] June 5] June 14]! June 20 16 9 6 31 
Sea is eee see Re do June 7 | June 17} June 22 18 10 5 33 
a See a aoe ae ee [eee do May 31] June 8 | June 14 11 8 6 25 
Ss eee She a ae do June 3] June 13 | June 19 14 10 6 30 
So SN SO ee ol (eee Gonaes =e aoe June 12 | June 20 14 9 8 31 
Bn Ree eee Bae |e doeess| Sar dose June 13 |...do 14 10 if 31 
Be oe eens See | eee do....| June 4] June 14} June 21 15 10 7 32 
ee Se ee | So do June 5] June 15 |...do....- 16 10 6 32 
Bs ene eee ose Meee. G0i.62| do... 2|.une 14) Jime20 16 9 6 31 
.do 2005-2 oi) June: 155) 2-¢do: <5. 16 10 5 31 
.do ...do....| June 14] June 23 16 9 9 34 
do ...-do....] June 16 | June 24 16 11 8 35 
PA GOne- o| de) 16) doses June 21 17 10 5 32 
May 21] June 31] June 11 | June 20 13 8 9 30 
do -| June 8 | June 18 | June 24 18 10 6 34 
---do....| June 9] June 19 | June 25 19 10 6 35 
-do -| June 12 | June 21 | June 27 Poy 9 6 37 
.-do....| June 16} June 25} July 1 26 9 6 41 
..-do....| June 17 | June 26] July 2 27 9 6 42 
OH ee gee Sete ene Twine) v4: |e aor ss June 25 | June 29 13 8 4 25 
VAN g Sah ae 9 fee ee June 7]| June 25! July 3] July 6 18 8 3 29 
DORs he Sa ssea eos ..-do....| June 26} July 6] July il 19 10 5 34 
PA eres Tee Cee ar June 8 | June 27 |...do....- July 12 19 9 6 34 
DA SS Se Re ee SE |..-do....| June 28} July 7 | July 9 20 9 2 31 
Diese aut Soucy been Si dok eet aNido: aeateen dO saees July 14 20 9 7 36 
Doe a Ee ese June 10 | June 25; July 4] July 9 15 9 5 29 
0} (SA RRS g June 11} June 23} July 1] July 7 12 8 6 26 
DAES ee ee Sees ee Ado eae COs ee natily est |Peelorere) 12 9 | 5 26 
DOR me senate BR do. KOZ = EE do .do 12 9 | 5 26 
SOP ssa e see ae June 12} June 25| July 4/1 July 10 13 9 6 28 
Sipe are. Na a ae  -2doue AC Ose ate do -do 13 9 6 28 
a ee ee ae || do AOE |e do.. July’ 8 13 9 4 26 
BO see ce See |..-do....| June 28} July 7] July 11 16 7 4 29 
BAe Wo SS Ree | June 13 | June 27 | July 6} July 10 | 14 9 4 27 
Sha ee oS eee do. dotseeies dose Bdosce= 14 9 4 27 
BS ee ote ets Seal lon do. doz -do.. -do 14 9 | 4 27 
Dilcmeminns eho oS ce MoS do AG toes Sd02 22) Jalhy; 1 14 9 5 28 
OTA ee ou feel Ae ee a) (ies ey en lapate LE ES te ee 595 340 208 1,148 
Averages for all indi- 
VAGLIAIS Sse eee 5) S28) Oe el on en Oe See ee eee Ce ae 16.08 9.18 5.62 30.89 
