LIFE HISTORY AND HABITS: THE PUPA. 79 
TaBLE XXXVII.—Length of time spent in the soil by the plum curculio, Washington, 
D. C., 1908—Continued. 
Adults emerging in specified days from time of entering soil by | Total | Total 
Dates laeves entered larvie. - ee days 
soil. r a ween | SPene 
37|38| 39 | 40| 41 | 42| 43 | 44| 45! 46 47| 48 | 49 | 50| 51] 52|53| 54/56) 1 SOll-| in soil. 
|S Ee ig i a ef (Ws Ps FERS es So Sec Fok a ie on \pateese 
iS Fed ol ct | ey ey sg et WR) ERG ae TS) OP ee ae OS Nee 
Total for season |26 |45 |43 26|8|9|8 | |5|5|3/3/2|2]1|4/0|1|2| 
Average time spent in the soil during May Spee 
Average time spent in the soil during June 31. 34 
Average time spent in the soil during July z - 21.78 
VERA DATE SD ON Gill hl© SOL MOL SCASODe sae seeen ne ose oe Se ob ein cieine eae wns owas wees Sere ete) 
Data obtained by Mr. Hammar at Douglas, Mich., during 1910 are 
shown in Table XXXVIII. A decided lengthening of the period is 
evident, the range being from 27 to 58 days, with an average for all 
individuals of 36.32 days. A total of 177 adults was reared from 
207 larvee. 
TaBLeE XXXVIII.—Length of time spent in the soil by the plum cureulio, Douglas, 
Mich., 1910. 
Adults emerging in specified days from time of entering soil 
by larvee. , Total 
Date larve en- | 7 aye : Total | days 
tered soil. : l l ee aT aa jadults. spent 
27/28 29'30|31/32'33 34 35/36/37 38/39/40 41 42/43 44 45 47/48/49|50155/58| in soil. 
Vins je "Cal (ea a jee a a) (a 
| 
io ee 6 ee al a al. ie VN oben (eed ged ea Giles eee 
7; oe ates ee 1 el a i (A ea et ae 2.24 Se VeNal St AMM 10: | aes 
peep et iH 2 ES Bs Gr) ee es a a Ge Recess 
Total... Ay a es a es 22| 849 
ae ra Oe 2} 1\12| 2] 3) 2]-.| 5|-.|-2) 7|--| al. Ja) a ih See 
2, See 24 --|-[ 1]--|--| 2] 3) 3} 3) 3] 1)..)..) 3).-|..]._. astealin SRO See a 
ee | 19 HI el blah ed St Ste Bieah dieatoctes } | Rg a 
ae fe es et rt ed ay a 1a} Soe 
Cie aan Remon barnegat 4) Dee te bal alee eleale Su) asset 
eS as 9 A A a a | Ds ey | ae oe 
(eNOS 42, |_.|..|..| 3| 3] 2} 6/10) 9) 5].-|..|..]..| cM 3a aw 32 t 
1 eae a 1 al Fa Ot | : | cn eee 
Spe See 1D } 1) 1), 2)--}.-]--|-- al --|- |. fi ee aa 
i 180 | 2| 2 2| 4] 6| 51321 29/1017 15] 1) 8| 4) 6) 7)..| 1 1}1| 155 | 5,585 
Total for Pelee Polat eteetalleesl ota ena Psi bade | 9 
season... - 207 | 2 9| 4! 4] 6 6 16 22.32 110.19 15 1/10} 4| 7] 9|..| 1] 2] 2} 1)..| 1) 1] 177] 6,434 
} Pal } ho oat | 
Berra time Spent al SLOUNG Urine UUM. << oe ee rien a ne Seen w een ence een days.. 38.59 
enrace Line Spey il SrOunG Curing July... 5-226 nema coe aetna win wleidinia oa oso win nese --- G0.<-. 36:03 
mverepigine Spent iM pround AiuTINe SEASON <<. 2-2 dames wcin ewe w ere rane owen = n= === ee do.... 36.32 
