36 BULLETIN 932, U. S. DEPARTMENT OF AGRICULTURE. 



Table XXI. — Length of feeding period of lance of the seoond orood of the 

 codling moth, stock-jar method, Grand Junction, Colo., 1915 — Continued. 



Date of 



entering 



fruit. 



Num- 

 ber of 

 indi- 

 vidu- 

 als. 



Length of feeding period in specified days. 



39 



40 



41 



42 



43 



44 



45 



46 



47 



48 



49 



50 



51 

 3 



"i 

 l 



"i 



52 



"2 

 1 

 1 



"i 

 2 



i 



53 



"2 



2 

 1 



"l 



i 



54 



55 



"i 



"i 



1 

 4 



56 



57 



58 



59 



i 



2 



60 



61 



62 



63 



(34 



65 



66 



67 



July 24 



28 



Aug. 1 



2 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



24 



25 



26 



27 



28 



29 



30 



31 



Sept. 1 



2 



3 



4 



5 



6 



7 



8 



9 



10 

 12 



67 

 38 

 52 

 62 

 56 

 64 

 51 

 81 

 55 

 57 

 28 

 47 

 49 

 38 

 35 

 44 

 29 

 40 

 39 

 34 

 41 

 21 

 27 

 40 

 29 

 21 

 32 

 24 

 21 

 17 

 12 

 16 

 12 

 8 



10 

 8 

 3 

 9 

 3 

 1 



2 



"i 



l 



"i 

 1 

















*i 



i 



"2 



"\ 



"2 



"3 

 1 



i 



*i 

 3 



"2 



"3 



"i 

 i 



1 



"2 



i 



"1 

 1 





*i 





2 

 1 





1 

 1 



"i 



"i 

 1 



1 



1 











1 



"i 





















1 



"i 



1 



"i 

 2 



"i 



"i 

 1 



"2 



"1 



"i 



3 



"3 



"i 



1 

 1 

 1 



"i 



'1 



"1 



'i 



1 



"i 

 *i 



2 



"2 

 1 



"i 

 "i 



2 



1 



2 

 1 



*"3 



"i 



1 



"2 



1 

 1 

 1 

 1 



3 

 1 



"i 



""1 



::: 



"i 

 1 

 1 



1 



"2 





3 



"i 



"i 

 1 

 2 



1 



"i 



"1 



"2 

 2 

 1 



"2 



1 



"i 

 1 



"2 

 "i 



"2 



"1 



1 



""1 



1 



"i 



2 





2 

 1 



"i 



2 



"i 



1 



"2 



1 



"2 

 3 

 1 



1 

 3 



"i 







T 









1 

 1 



"i 





2 





"i 



""1 

 1 







"2 



1 

 1 



"2 



"3 



1 





1 



"l 

 1 





"i* 







1 

 1 

 1 



1 









1 













1 



1 



"i 



1 













"] 









2 



1 



1 















1 









1,939 



29 



22 



16 



15 



12 



12 



12 







17 



7 



6 



5 



6 



8 



7 



4 



11 



8 



i 



ji 



7 



4 



b 





4 











Days. 



. 28.69 



Average length of feeding period 



Maximum length of feeding period 67 



Minimum length of feeding period ' 15 



Length of the cocooning period. — The time consumed in construct- 

 ing the cocoon by the transforming larvae of the second brood will be 

 found in Table XXII. As will be noted therein, the average cocoon- 

 ing period for 20 individuals was 9.35 days, the maximum 31 days, 

 and the minimum 3 days. The maximum here reported is the longest 

 cocooning period secured for any larva throughout this and the fol- 

 lowing season. As will be seen from Table XXII, this individual left 

 the fruit September 1 and pupated October 2. 



