92 THE PLUM CURCULIO. 
From all of the foregoing data it is clearly shown how important is 
moisture for the transformation of the curculio in the soil. In general, 
no adults issued from a dry soil, and in a soil moist at time of entrance 
of larve, but allowed naturally to dry out, the number emerging was 
greatly reduced, from 88.23 per cent to 27.94 per cent, as compared 
with condition of checks. Dryness does not appear to affect the 
length of the stages, as the average days spent in the soil of individuals 
of both series is about the same. As shown in Table XLV the mor- 
tality seems to be largely after transformation to the beetle stage has 
occurred, if the soil was moist at the time the larve entered. 
THE ADULT. 
PERIOD OF EMERGENCE OF BEETLES. 
As elsewhere shown (p. 48) oviposition extends over several weeks, 
or even months. It follows that the beetles resulting from the eggs 
will emerge during a similar interval of time, and this period may be 
considerably modified by the condition of the soil, as whether dry, or 
sufficiently moist to permit the prompt escape of the beetle when suf- 
ficiently hardened. 
Records of the emergence of beetles during the season, as obtained 
from the larval emergence records detailed in Table XXII, are shown 
in Table XLVIII from Barnesville, Ga.; Siloam Springs, Ark.; Wash- 
ington, D. C.; and Douglas, Mich. 
Taste XLVIII.—Emergence from the soil of beetles of the plum curculio during the season, 
several localities. 
Dates of | Barnes- 5 a am | Washing- bes | apie Barnes- ee Washing- os 
emer- | ville Ga Springs, tone NG las, |] emer- enGn Springs, fone las, 
gence BAe) Anis. 2"! Mich. || gence. 2A") (aes oe 2 ot Miele 
June 6...- 9 July tee) 9 14 69" |"s22ce eas 
Tes 13 2h 2 83 410 coeoee eee 
aioe 18 107 40) 52 one 
Yee 26 30 54a Serer eee 
10... 33 12 60) Saeeneee 
aS: 105 3 15: fo eee 
1252 135 55 852 assess 
13.. 132 2 20'S Sees 
Lge 150 2 OOM. soe eee 
15.- 141 i) ASiS. sos aes 
16... 108 7 29 
V7(Se 128 56 ANE 
AS es 61 12 39 |. 
19E es 47 | 14 15 
20h 57 | 2 96 
PANN 53 50 | 16 3l 
22... 38 7 80). sete 
AS EEe 43 64 io ee oee == - 
Dassen 33 10 16))| ce ae 
25... 19 13 O4) |. 3a coer 
26.. 16 10 TAL Ss eee 
27... 1 3 197s er eeeee 
28. . 24 5 67) |e aeeneee 
29... 9 9 65: |Seeeeeeee 
305... a 6 25s |e. noes 
Total. 1, 407 4 yy eee ese 
=== 1 32 ee 
