CODLING MOTH IN COLORADO. 



23 



Table XI. — Length of cocooning period of transforming codling moth larvae, of 

 the first brood, Grand Junction, Colo., 1915. 



Larvae 

 left 

 fruit. 



Num- 

 ber of 

 indi- 

 vid- 

 uals. 



Length of cocooning period in specified days, being the time 

 from leaving the fruit to the time of pupation. 



Av. 



Max. 



Min. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



1 



1 

 1 

 1 



13 



2" 



2 

 1 



2 

 1 

 1 



14 



i" 

 1 



i" 



15 



1 



1 



1 



1 

 1 



17 



1 

 2 



18 



1 



19 



1 



20 



1 



22 



2 

 1 



23 

 1 



26 



i" 



2S 

 1 



June 23 



25 



26 



27 



28 



29 



30 



July 1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



Total. 



1 



1 



10 



21 



18 



14 



10 



31 



27 



17 



17 



17 



35 



18 



28 



20 



14 



15 



17 



8 



10 



13 



10 



10 



10 



9 



11 



5 



6 



2 



2 



1 



2 









1 





1 

 3 



T 



"2 

 6 

 6 

 4 

 2 

 2 

 5 

 3 

 6 

 2 



"3" 

 1 











1 



Days. 

 4.00 

 6.00 

 5.60 

 4.71 

 5.22 

 5.43 

 6.60 

 5.87 

 5.55 

 7.82 

 8.00 

 10.70 

 7.31 

 6.39 

 7.00 

 7.25 

 8.64 

 7.33 

 7.29 

 7.25 

 6.20 

 7.15 

 6.00 

 7.20 

 5.50 

 5.11 

 6.27 

 5.00 

 7.50 

 7.00 

 6.50 

 4.00 

 6.00 



Days. 



4 



6 



11 



8 



8 



9 



12 



17 



11 



28 



19 



23 



26 



13 



15 



14 



22 



15 



13 



10 



9 



11 



12 



13 



10 



6 



12 



11 



13 



8 



8 



4 



6 



Days. 

 4 

 6 

 4 

 3 

 3 

 2 

 4 

 2 

 1 

 3 

 2 

 4 

 3 

 4 

 3 

 3 

 4 

 2 

 3 

 4 

 4 

 4 

 4 

 3 

 2 

 3 

 3 

 4 

 4 

 6 

 5 

 4 

 6 















3 

 10 

 3 

 3 

 2 

 7 

 7 

 2 

 2 

 2 

 8 

 6 

 3 

 2 

 3 

 2 

 2 

 2 

 2 

 1 

 4 

 1 

 2 

 1 

 1 

 2 



1 



3 



6 

 8 

 4 

 2 

 9 

 6 

 3 

 3 

 2 

 6 

 2 

 6 

 4 

 2 



y 







2 

 2 

 1 



1 



T 

 2 

 4 

 2 

 2 

 3 

 3 



2 

 3 



T 

 1 

 2 



"i* 

 2 



"2 



2 











1 



"i" 



1 



1 

 1 

 1 







2 

 1 



1 



"i" 



1 



2 





1 







4 



1 













3 

 1 



3 

 1 

 1 



2 

 3 



2 



"2" 

 2 



1 



"i" 

 T 



1 

 1 



1 

 1 







3 



1 

 3 

 4 

 2 

 1 

 3 



2 

 3 

 3 



"i" 

 2 

 2 









1 



"i" 



2 

 2 

 1 



2 

 1 



2 

 1 













2 

 3 

 2 



"i" 



3 

 3 

 1 



2 

 1 

 2 

 3 



T 

 1 

 1 

 2 

 1 



















i 



2 

 1 

 2 



1 

 2 



2 







1 





2 

 1 



2 















... 



2 

 1 

 1 





















1 









1 



2 



















430 



1 



5 



23 



86 85 



67 



44 



37 



15 



17 



13 



8 



9 



3 



5 



3 



1 



1 



1 



3 



1 



1 



1 



6.70 



28 



1 



Pup^e of the First Brood. 



Time of pupation. — The earliest pupation of the transforming 

 larvae of the first brood occurred June 27, and the latest took place 

 August 4. The larvae 

 were therefore pu- 

 pating during a pe- 

 riod of slightly more 

 than one month. See 

 Table XII and dia- 

 gram, figure 5. 



Length of pupal 

 stage. — The average 

 length of the pupal 

 stage of pupse of the 

 first brood is consid- 

 er ably sho rte r 

 (about 16 days) 

 than that of the 

 spring-brood pupse, 



Fig. 



5.- — Time of pupation of first brood of the codling 

 moth, Grand Junction, Colo., 1915. 



owing to the higher temperatures prevailing during midsummer. As 

 given in Table XIII the average length of the first-brood pupal stage 

 was 11.44 days, maximum 31 days, and minimum 6 days. 



