CODLING MOTH IN SANTA CLARA VALLEY. 149 



Table XXXIV. — Spring brood of moths. Time during the day when moths emerged. 



Period of ovi position. — Although moths were placed in an oviposi- 

 tion cage with apples as soon as they emerged, no eggs were observed 

 until June 1. After that time there was no difficult}* in obtaining 

 eggs. In the field eggs occurred early in April. No eggs could be 

 obtained from single pairs of spring-brood moths, and thus no data 

 were obtained as to the number of eggs a single female could deposit. 

 In April and May, 1911, the mean temperature was considerably 

 below normal and possibly this fact ma}' account for the moths 

 refusing to oviposit on the apples. From June 2 to 9 maximum 

 oviposition took place. 



Longevity of spring brood of moths. — Records were kept relative 

 to the length of life of 40 moths which, were placed in two jars and 

 which were fed on grape juice and brown sugar. The results of these 

 observations are given in Table XXXV and the summary of the 

 results m Table XXXVI. 



Table XXXV. — Spring brood of moths, 1911. Length oflifeofihe moths. 



