CODLING MOTH IN COLORADO. 



23 



Table XL — Length of cocooning period of transforming codling moth laruce 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. 



Ay. 



Max. 



Min. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



:; 



1 



1 

 1 



13 



2" 

 2 

 1 



2* 



i" 



r 



9 



14 



_ 



:: 



i' 

 1 



i" 



15 



_ 



i" 



i" 



i" 



i" 



1 



17 



i" 

 2 



18 



i* 



19 



i" 



20 



;; 

 i" 



22 



2" 

 i" 



.. 



23 



:: 



i" 



26 



_ 



" 



i" 



28 



i* 







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 









1 





T 



3 



"2 



"2 

 6 

 6 

 4 

 2 

 2 

 5 

 3 

 6 

 2 



"§" 



1 











"i" 



Days. 

 4.00 

 6.00 

 5.60 

 4.71 

 5.22 



Days. 

 4 

 6 

 11 



8 

 8 



Days. 

 4 

 6 

 4 

 3 

 3 













3 

 10 

 3 

 3 



2 

 7 

 7 

 2 

 2 

 2 

 8 

 6 



3 

 6 

 8 

 4 

 2 

 9 

 6 

 3 

 3 

 2 

 6 

 2 

 6 

 4 

 2 



Y 





2 

 2 

 1 



1 



T 



T 

 2 

 4 

 2 

 2 

 3 

 3 



2 

 3 



T 

 1 

 2 



T 

 2 



"2 



"2" 







... 



1 



5.43 9 2 

 6.60 > 12 4 



T 



1 



1 



1 



T 



"i" 

 1 



~2~ 



"l 



"2" 

 T 



5.S7 17 

 5.55 11 

 7. 82 28 

 8. 00 19 

 10. 70 23 

 7.31 26 



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 



... 



1 







4 







6.39 

 7.00 

 7.25 

 8.64 

 7.33 



13 

 15 



14 

 22 



15 







3 



3 



3 

 1 

 1 



2 

 3 



2 



"2 



2 



T 

 T 



"i* 



1 



1 



i" 

 i* 



s 







1 ■ 



3 

 1 

 3 

 4 

 2 

 1 

 3 



2 

 3 

 3 



"i" 



2 

 2 









3 

 2 

 2 

 2 

 2 

 1 

 4 



... 



1 



T 



2 



2 

 1 



2 

 1 



2* 



1 



"2 



T 



7.29 13 

 7.25 10 

 6.20 9 

 7.15 11 

 6. 00 12 

 7. 20 13 

 5. 50 10 

 5.11 6 

 6. 27 12 

 5.00 11 

 7. 50 13 

 7.00 8 

 6.50 8 

 4.00 4 

 6.00 6 













2 5 









3 

 9! 



1 

 2 

 3 



T 



1 

 2 



1 



10 









10 

 10 



9 

 11 



5 







i 



1 ... 



1 

 2 



2 ... 





1 



2 

 1 



2 

 1 



1 

 3 

 3 



1 





i 



2 



"2 



... 



6 



I 

 I 









... 



2 

 1 

 1 





















1 









1 



"2" 













... ...L. 













430 | 1 



5 



23 86 J85 ,67 



44 :37 15 



17 



13 



3* 



5 







3 



1 



1 



1 



3 



1 



1 



1 



6. 70 2S 1 



Pttem: of the First Beood. 



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 larva? 

 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 pupa? of the 

 first brood is consid- 

 erably shorter 

 (about 16 days) 

 than that of the 

 spring-brood pupae, 

 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 day's, and minimum 6 days. 



iJUNC JULY *CA9U3T 



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

 moth, Grand Junction, Colo., 1915. 



