THE CODLING MOTH IN MICHIGAN. 



39 



Table XXXVII. — Egg deposition in confinement by individual moths of the spring 

 brood, Douglas, Mich., 1911. 



Date of 

 egg depo- 

 sition. 



Number of individual moths. 



1 



2 



3 



4 



5 



6 



7 



8 



9 10 



11 



12 



Date of emergence of moths. 



■* 



3 



d 

 B 



| 



5 



© 



CD 

 | 



cn 



1 



CM 



IN 



c5 



o 



<M 

 CD 



5 



CN 



5 



June 10 

 June 11 

 June 12 

 June 13 

 June 14 

 June 15 

 June 16 

 June 17 

 June 18. 

 June 19 

 Jime 20 

 Jime 21 

 June 22 

 June 23 

 June 24 

 June 25 

 June 2G 

 June 27 

 June 28 

 June 29 

 June 30 

 July 1 

 July 2 

 July 3 

 July 4 

 July 5 







26 



















1 



11 















































































































































1 



8 

 20 



33 



4 



37 



35 



3 



14 



35 

















10 

 2 

 2 



20 

 8 



14 





















24 



































































































6 

 26 













10 

 3 

















































































17 



"56" 

 13 

 15 



1 



















28 

 4 

 3 





58 

 28 



2 



7 

 40 































1 

 14 























































5 

 33 

















































Date of death of moths. 



>> 



"3 



CM 



a 



2 



d 



£ 



CN 



CD 



a 



2 



CN 



3 



00 

 CN 







5 



00 



| 





CO 



>> 



"3 



1 Escaped June 20. 



In all 160 female moths were removed from the different stock jars 

 (Table XL) and were kept isolated in glass tumblers, covered with 

 perforated tin covers. A small piece of sponge dipped in diluted 

 sugar-and-honey solution was inserted to supply food. To encourage 

 egg deposition fresh pear leaves were placed in the tumblers and were 

 daily replaced by fresh foliage at the time the tumblers were examined 

 for eggs. 

 Table XXXVIII. — Egg deposition by individual moths; summary of Table XXXVII. 



Observations. 



Number of individual moths. 



1 



2 



3 



4 



5 



6 



7 



8 



■ 



10 



11 



12 



Total eggs per female 



Days before egg deposition . 

 Days duration of egg depo- 



70 



7 



16 



5 

 27 



35 



9 



2 



17 



26 

 4 



1 





 4 



36 

 6 



4 



161 

 6 



2 



14 



35 

 9 



3 



1 

 - 12 



32 

 4 



2 



3 



8 



86 

 5 



2 



8 

 14 



102 

 4 



6 



3 



12 



49 

 3 



3 



5 



10 



15 

 5 



2 



4 



10 



38 



8 



2 



Days alive after egg depo- 



3 





12 











