CODLING MOTH IN NORTHWESTERN PENNSYLVANIA. 89 



Table XXII. — Life cycle of the first generation, as determined by rearing during 1909. 



No. 

 of 

 ob- 

 ser- 



va- 

 tion. 



Date of- 



Egg dep- 

 osition. 



Hatch- 

 ing. 



Larva 

 leaving 

 the fruit. 



Pupa- 

 tion. 



Emer- 

 gence of 

 moth. 



Days for- 



Hatch- 

 ing. 



Feed- 

 ing. 



Mak- 

 ing of 

 cocoon 



Pupal 

 period. 



Total 



life 

 cycle. 



June 23 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



June 24 

 ...do.... 

 ...do.... 

 ...do.... 



June 25 

 ...do.... 



June 26 

 ...do.... 

 ...do.... 

 ...do.... 



June 27 

 ...do.... 



June 28 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



June 29 



June 30 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



July 1 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



July 2 

 ...do.... 

 ...do.... 



July 3 

 ...do.... 



July 4 

 ...do.... 



July 5 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



July 13 



June 30 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



..do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



July 1 

 ...do.... 



July 2 

 ...do.... 



..do.... 



..do.... 

 July 4 



..do 



July 6 



..do.... 



..do.... 



..do.... 



..do.... 



..do.... 



..do..... 

 July 8 

 July 9 



..do 



..do 



..do 



..do 



July 10 



..do 



..do 



..do 



..do 



July 11 



..do 



..do 



July 12 



..do 



..do 



..do 



July 13 



..do 



..do 



..do 



..do 



July 21 



July 27 



...do 



...do.... 

 ...do.... 



July 28 



...do 



...do...., 

 July 29 



...do 



July 30 

 July 22 

 ...do.... 

 ...do.... 

 July 27 

 Aug. 1 

 Aug. 3 

 July 19 

 ..do..... 

 Aug. 3 

 Aug. 8 

 July 22 

 July 30 

 July 28 

 July 29 

 July 31 

 Aug. 

 Aug. 

 Aug. 

 Aug. 

 Aug. 

 Aug. 

 Aug. 

 Aug. 

 ..do. 

 Aug. 

 Aug. 



..do 



Aug. 6 

 Aug. 8 



..do 



July 25 

 Aug. 5 

 Aug. 10 

 Aug. 5 

 Aug. 14 

 Aug. 4 

 Aug. 6 

 Aug. 7 



...do 



Aug. 9 

 Aug. 10 

 Aug. 13 

 ..do — 



Aug. 5 



Aug. 3 



Aug. 2 



..do 



Aug. 8 



Aug. 4 



Aug. 3 



Aug. 5 



Aug. 9 



July 29 

 July 28 



...do 



July 30 

 Aug. 9 



...do 



July 23 



...do 



Aug. 9 

 Aug. 13 

 July 28 

 Aug. 8 

 Aug. 2 

 Aug. 6 

 Aug. 7 

 Aug. 6 

 Aug. 9 

 Aug. 10 

 Aug. 8 



...do 



Aug. 15 

 Aug. 8 

 Aug. 11 

 Aug. 26 

 Aug. 14 

 Aug. 16 

 Aug. 9 

 Aug. 16 

 Aug. 27 

 Aug. 18 

 July 31 

 Aug. 11 

 Aug. 22 

 Aug. 12 

 Aug. 19 

 Aug. 8 

 Aug. 9 

 Aug. 11 

 Aug. 13 

 Aug. 16 

 Aug. 14 

 Aug. 18 

 Aug. 23 



Aug. 20 

 Aug. 18 

 Aug. 15 



...do..... 

 Aug. 23 

 Aug. 16 

 Aug. 17 

 Aug. 19 

 Aug. 23 

 Aug. 15 

 Aug. 9 

 Aug. 11 



...do 



...do..... 

 Aug. 20 

 Aug. 23 

 Aug. 3 

 Aug. 5 

 Aug. 24 

 Aug. 29 

 Aug. 9 

 Aug. 23 



Aug. 19 

 Aug! *25' 



Aug. 19 

 Aug. 28 



Aug. 31 

 Aug. 23 

 Aug. 30 



Sept. 3 

 Aug. 14 



Aug. 22 



Aug. 27 

 Aug. "28 



27 

 27 

 27 

 27 

 28 

 28 

 28 

 29 

 29 

 30 

 22 

 22 

 22 

 27 

 31 

 33 

 17 

 17 

 32 

 37 

 18 

 26 

 22 

 23 

 25 

 26 

 28 

 29 

 30 

 24 

 24 

 26 

 31 

 31 

 32 

 22 

 22 

 27 

 29 

 29 

 a 14 

 25 

 30 

 24 

 33 

 23 

 25 

 25 

 25 

 27 

 28 

 31 

 23 



408 1,397 



7 



5 



6 



6 



3 



7 

 13 



4 



2 

 17 



4 

 15 



8 

 10 



19 1 

 10 



6 



6 



12 



7 

 5 

 4 

 3 

 4 

 6 

 7 

 4 

 5 

 10 



450 



1,824 



a Probably from infested apple. 

 Table XXIII. — Life cycle of the first generation. Summary of Table XXII. 



Observations. 



• 



Days for— 



Hatch- 

 ing. 



Feeding. 



Making 

 of cocoon. 



Pupal 

 period. 



Total 

 life-cycle. 



Average 



7.7 



9 



6 



26.36 



37 

 17 



7.09 

 19 

 3 



13.63 



16 



11 



53.64 



64 



38 





Minimum 





