106 



BULLETIN 932, U. S. DEPARTMENT OE AGRICULTURE. 



A comparison of Tables XLII and LXXVI will show that the 

 average number of eggs per female was greater in 1916. but that, as in 

 1915. the period of opposition was shortened somewhat and that it 

 was also delayed where the pairs were confined alone in individual 

 cages. However, in 1916, the female lived for an average of 12.20 

 days when confined with other moths in a large battery-jar cage, as 

 shown in Table XLIII. compared with 16.12 days when caged in- 

 dividually. Other important phases of the individual oviposition 

 studies of 1916 are given in detail in Table LXXH. 



An abbreviated table giving the data for all of the moths that 

 deposited 100 or more eggs is given herewith. (See Table LXXVII.) 

 Referring to this table, it will be noted that 3 moths deposited over 

 300 ego's each. 1 moth deposited between 275 and 300 eggs, 6 moths 

 between 250 and 275 eggs. S moths between 225 and 250 eggs. 10 

 moths between 200 and 225 eggs. 13 moths between 175 and 200 egers. 

 9 moths between 150 and 175 eggs. 11 moths between 125 and 150 

 eggs, and 11 moths between 100 and 125 eggs. 



Table LXXVII. — Oviposition by individual codling moths of the first brood, 

 Grand ■Junction. Colo., i:' 1 ! 1 ?. Data taken from Table LXXVI. 



Number of eggs deposited. 



100 to 12-5 12-5 to 150. 150 to 175 175 to 200 200 to 22-5 225 to 250 250 to 275 275 to 300 , 300 to 325 



101 

 102 



103 

 107 



109 

 112 

 113 

 116 

 116 

 IIS 

 119 

 120 

 120 

 121 



12, 

 12S 

 133 

 133 

 134 

 135 



139 

 139 



142 



157 

 15 S 

 159 

 163 

 165 

 165 

 16S 

 16S 



175 

 175 

 181 

 1S2 

 1S3 

 185 

 185 

 15-5 



1S6 



1SS 

 192 

 195 



200 



2 3 



207 

 210 



213 

 213 

 215 

 221 

 223 



227 



251 



O" 



227 



252 





229 



252 





- 



258 





240 



2 





245 



271 





247 







240 







30S 

 309 



316 



DEPOSITION OF INFERTILE EGGS. 



On July 15. 1915. 30 female moth- of the first brood which emerged 

 on this day were confined alone in a cage to find the number of eggs 

 deposited when male moth- were not present. The results are given 

 in Table LXXVIII. in which it will be seen that a total of 232 eggs 

 were deposited, or an average of T.40 egg- per moth. 



