16 BULLETIN 689, U. S. DEPARTMENT OF AGRICULTURE. 



Several females never laid eggs. One of these issued on July 22 

 and lived until October 30, part of the time in company with a male. 

 Xo eggs were found in the ovaries at death. On the other hand, 

 some females that laid eggs had well-formed eggs in the ovaries at 

 death. Seventy-seven eggs were found in the ovaries of the female 

 of Pair L after three clusters, containing 240 eggs in all. had been 

 deposited. 



While one female deposited a cluster of eggs 19 days after becoming 

 adult, the average length of this period was nearly four weeks. 



