78 



Annals Entomological Society of America [Vol. IV, 



THE ADULT. 

 1. Length of Life in Confinement. 



a. In Pairs Normally Reproducing. 

 The data obtained on this point are scanty and much 

 vitiated by the fact that the lots were neglected too soon to 

 obtain normal results, but they supplement to some extent the 

 data obtained in 1907 tending to support the theory that the 

 average duration of life of normally reproducing adults is two 

 months or more. The average here is 1.8+ months, the data 

 however being insufficient. 



TABLE V. 

 Length of Adult Life in Confinement, Normally Reproducing. 



* Escaped. 



t Liberated. 



: Starved and entered hibernation. 



2. Length of the Period of Ovi position. 



As with the previous section, the results here are abnormally 

 short in point of duration for the reasons given. They are 

 merely tabulated therefore, without further comment. 



TABLE VI. 

 Length of the Period of Oviposition. 

 Generations, 1908. 



Different 



• Average time of a period of 4 days. 



