TIME FROM EGG TO ADULT. pial 
The average time required for complete transformation and 
emergence of beetles, as shown in Table LVII, also varies considerably, 
but in view of the variations in season and in the localities from which 
records were obtained are more uniform than had been expected. 
Thus, between the shortest time, 43.05 days (Georgia, 1906), and the 
longest, 57.21 days (Michigan, 1910), there is a variation of only 
14.16 days. The average time for the complete life cycle from egg to 
emergence of adult for all localities is 50.27 days. 
Complete records were obtained, in the case of a few individuals, of 
time occupied from deposition of egg to appearance of adult, as shown 
in Table LVIII. The averages for each locality are based on the 
total number of life-cycle days. The Barnesville, Ga., records include 
individuals from eggs laid each month from April to August, inclusive. 
These are separated in the table so as to show the marked lengthening 
of the life cycle in the earliest individuals, from eggs laid April 8-14. 
TasLeE LVIII.—Showing time required for transformations of the plum curculio from egg 
to adult. Individual records. 
Beetles emerging in specified days 
Indi from oviposition. 
Localities. Dates of oviposition. viduals. | I 
36 37,38 39 40 41 42 43/44/45 46 47 48) 49 50 
| | 
BarnesvilleGanc. osc sose scenes Aprss-145 1910 2.5.42 BIS Se else leledle Ne esate. 
LD Ciena 53 ae ea ae May 9-26, 1910.......- 49|..|..|..]..] 1} 3] 3] 8] 2] 8) 4) 6| 9! 4! 2 
DO tec eee e en eee eons 8 June 16-30, 1910.....-- 27|..| 1) 2) 1) 2) 1) 4) 3) 3) 2 1).-| 2) 1).. 
DOR Jae sce ame a eee aaa July; 1-30; 1910_..--..- 177|. .| 3} 3)11/15)13)12 15/17/13 16) 9} 9)15) 6 
DOR eae ce en eee ee ee Aug. 7-17, 1910.....-.- Ml S3\pAlesle 1} 2| 1) 7| 3) 5) 616) 7 
TO tal Seo eee ee cet | eS ort as SUE 415|..| 5| 5|12/18|17|20)28 ae 26/36) 15 
prounestown, N- Yoseeeeea- sees June 21-24, 1905......- GUO) (tet LA bel ee BA (1 ee bE 
INorihvBast, Pa... see ene she June 13-14, 1906....... | gla leel| al ete ea Clee| ele aeG reales 
Wiashineton, D. Ci. - Sces aero May 10-June 10, 1905-. BB) eg Fn Pe: WS a ae Fe ese | to 
Myrtle: Ga..o.2 Sacvsk cee een aaa May. 7-16, 1906........ Ped ele teal ead yae- Vi fe) il) Ps el ea Weel allie) oe 
mowelas st Mich. _.22 io. Seen eee ee June 24-July 6, 1910--- Oslected Salled|eeloajoci alee aeles!| Wleeiad ee 
Grand, totals: ..J. coh ss tees gears ttl 597|17 16| 9 13/22 25 21/30 23 30, 29/25/33) 40/16 
Beetles emerging in specified days 
Indi from oviposition. 
Localities. Dates of oviposition. vidual! —— a | 
51 52 53 54.55 56,57 58 59 60 61/6263 64 65 
; i $2: Lo La) face ae ie 
Barnesville, Ga............-------- Apr. 8-14, 1910........ gi|..|..|.-|.-|--|--|--|--|--|--| 2]--[11}12126 
1010) Ae ee Se eee ener Mav 9-26, 1910........ AQIS RE eS 3) se ee 1s) | S| OR at 
De no do RS Sarre pee June 16-30, 1910....... | elf 1 || Le feats TES es] eee 
> a eee July 1-30, 1910........ | Vee Oe as PH | eg pg 
15 Ti cl es eR ae Ce Twit TEI A 71} 4) 3) 2) 5| 3) 1) 2). v1 es 
Tet 2 hae the ee ene epieastos ees es Cok: 415] 8| 9| 7| 8 5 3 ‘ 1)..| 3) 3|..|11]12.26 
| | 
Youngstown, N. Y.......- ee June 21-24, 1905.-..-.- 10} 1) 1)..)..)--]--]--|- As 1 aie 
M@prthi Kast, Pa......-.-....:-.--.- June 13-14) 1906... -... a7) airals ds ae PAP S| Be = Ea 
Washinton, D.C. s.-----<22---.2- May 10-June 10, 1905... tae J CaF ed 
EVERIO) GAN ssn a src ceases otinae May 7-16, 1906........ PAS MLE SES eal oats al 
IOHMEIAS., MICH eas. sac cass haee June 24-July 6, 1910... 98] 1) 1) 1) 3)19) 9} 7| 4:11 17| 8| 1| 7} 2 4 
einen totaal os brant amen set: oe ene 597/14 14 8 12)23)1211 5142012, 1181430 
