CODLING MOTH IN COLORADO. 



37 



Table XXII. — Length of cocooing period of transforming larvce of the second 

 brood of the codling moth, Grand Junction, Colo., 1915. 



Larvce 

 left fruit. 



Num- 

 ber 

 of 

 indi- 

 vid- 

 uals. 



Length of coeooning period in specified days, 

 being the time from leaving the fruit to the 

 time of pupation. 



Aver- 

 age. 



Maxi- 

 mum. 



Mini- 

 mum. 



3 



4 



5 



6 



7 



8 



10 



11 



12 



16 



31 



Aug. 5 



7 



8 



9 



10 



11 



12 



13 



16 



19 



20 



22 



28 



Sept. 1 



3 



7 



Total . 

















1 





1 

 1 







Days. 

 11.00 

 12.00 

 4.00 

 5.00 

 6.00 

 10.00 

 3.00 

 16.00 

 6.50 

 6.00 

 8.33 

 5.00 

 12.00 

 31.00 

 11.00 

 6.00 



Days. 



12 



12 



4 



5 



6 



10 



3 



16 



7 



6 



10 



5 



12 



31 



11 



6 



Davs. 



10 



12 



4 



5 



6 



10 



3 



16 



6 



6 



7 



5 



12 



31 



11 



6 





















1 



















1 























1 



























1 











1 





































1 











1 

 1 



1 



































1 



1 



1 















1 



























1 

























1 

















1 













1 











1 





















20 



1 



1 



2 



4 



2 



1 



3 



1 



3 



1 



1 



9.35 



31 



3 



Pjjpm of the Second Brood. 



Time of pupation. — It will be observed in Table XXIII and figure 

 10 that pupation of 

 the second brood oc- 

 curred from August 

 12 to October 2, in- 

 clusive. 



Length of the pupal 

 stage . — In Table 

 XXIV the length of 

 the pupal stage of 

 16 pupae of the sec- 

 ond brood is given 

 and, as recorded therein, the average was 15.62 days, the maximum 

 31 days, and the minimum 11 days. 



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Fig. 10. — Time of pupation of the second brood of the 

 codling moth, Grand Junction, Colo., 1915. 



Table XXIII, 



-Time of pupation of transforming larvce of the second brood of 

 the codling moth, Grand Junction, Colo., 1915. 



Date of 

 pupation. 



Number 

 of pupae. 



Bate of 

 pupation. 



Number 

 of pupae. 



Date of 

 pupation. 



Number 

 of pupae. 



Date of 

 pupation. 



Number 

 of pupae. 



Aug. 12 

 14 

 15 



16 

 17 



1 

 1 

 2 

 1 

 1 



Aug. 19 

 21 

 22 

 23 

 25 



1 

 1 

 1 

 1 

 1 



Aug. 27 

 28 

 29 

 30 



Sept. 9 



2 

 1 



1 

 1 



1 



Sept. 13 



14 



Oct. 2 



1 

 1 

 1 



Total- 



20 



