24 



BULLETIN 932, U. S. DEPARTMENT OE AGRICULTURE. 



Table XII. — Time of pupation of transforming larva? of the first brood of the 

 codling moth, Grand Junction. Colo., 1915. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 puptc. 



June 27 

 30 



Julv 1 

 2 

 3 

 4 

 5 

 6 



1 



5 



17 

 13 

 13 

 10 

 12 

 26 



July 7 



8 

 9 

 10 

 11 

 12 

 13 

 14 



15 

 20 

 16 

 18 

 19 

 16 

 19 

 20 



Julv 15 

 16 

 17 

 IS 

 19 

 20 

 21 

 22 



11 

 9 

 15 

 13 

 19 

 18 

 14 

 17 



July 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 



16 

 5 



19 

 6 



4 

 9 

 3 



4 



July 31 



Aug. 1 



2 



3 



4 



Total 



2 

 7 

 

 



1 



432 



Table XIII. — Length of the pupal stage of pupw of tlie first brood- of the cod- 

 ling moth, Grand Junction, Colo., 1915. 



Date of 

 pupa- 

 tion. 



Num- 

 ber of 

 indi- 

 vid- 

 uals. 



Length of the pupal stage in specified days. 



1 



6 



7 



8 



9 10 



11 



12 



13 14 



15 



16 



17 IS 



19 20 



21 



24 



25 



31 



June 27 

 30 



Julv 1 

 2 

 3 

 4 

 5 

 6 



8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 2S 

 29 

 30 

 31 

 Aug. 1 



1 



4 

 "15 

 11 

 12 



6 

 11 

 19 

 13 

 16 



8 

 15 

 16 

 12 

 11 

 17 



7 

 13 

 10 

 17 

 15 

 12 

 12 



4 

 14 

 4 

 3 

 6 

 2 

 2 



9 











1 













........ 









4 

 3 

 5 

 2 

 1 

 6 

 5 

 8 

 5 

 2 

 5 

 4 

 2 

 6 

 10 

 1 

 3 

 3 

 2 

 4 

 4 

 3 

 2 

 2 

 3 

 7 

 .... 



2 

















1 



.... S 



1 3 

 1 5 



3 



"3" 



1 

 2 

 4 



1 

 3 

 1 

 2 

 4 

 4 

 5 

 2 

 5 

 1 

 3 

 3 

 4 

 7 

 2 

 3 

 2 

 1 

 1 

 1 

 1 

 1 

 2 



. 





















2 























1 























2 



1 

 .... 



3 

 2 



1 



2 

 1 

 6 

 1 

 6 

 2 

 4 

 3 

 2 

 1 

 ?, 























1 



1 























1 



















i 





1 















2 



1 





















1 













:::::::::::::::::::: 



1 













1 



2 



.... 



1 









i ...J 





1 









.. .1 



2 



1 







1 .. 













1 





















1 











1 



"2 

 2 

 3 



2 

 3 

 1 

 1 

 2 



"3" 

 2 





















1 











1 

















1 





1 

















2 

 .... 



.... 







1 





2 

















2 





















3 

 1 



















1 



1 



1 





























....... 1.... 



























, 













1 



1 

 3 



3 



1 













I'"" 



































1 





























1 





1 



1 











































1 







1 





















I 



1 

















.1 









1 





1 



















331 1 2 



12 | 19 



62 



106 



74 



26 



13 



r] 2 



iii 2 



2 1111 



Days. 



Average length of the pupal stage 11. 44 



Maximum length of the pupal stage 31 



Minimum length of the pupal stage 6 



Moths of the First Beood. 

 Thne of emergence. — The records of the time of emergence of 

 moths of the first brood were taken from two sources of material : 

 (1) From moths that issued from first-brood larva? reared in the ill- 

 sectary and (2) from moths that issued from the larva? collected every 



