68 



Trans. Acad. Sci. of St. Louis. 



TABLE 44. 

 Period of Incubation. Eggs of P. cynthva. Philadelphia, Pa., 1913. 



TABLE 45. 

 Period of Incubation. Eggs of P. cynthia. New York, 1912. 



data Fab. Only one, a normal female, emerged May 28 

 and lived 8 days. The very evening of its first day it 

 deposited infertile eggs. During its lifetime it laid 186 

 eggs and retained 10 after its death, making a total num- 

 ber carried of 196 eggs. One of the other chrysalides, 

 when opened some time after all expectation of 

 emergence was gone, was found to contain an adult moth, 

 dead, which for some reason had not been able to effect 

 the proper emergence. It was a female and it must 

 have lived for some time, since 12 eggs had been de- 

 posited in this prison house. 



