them to find one had pupated while the other was still in the lar- 

 val state. It remained in this state till March, 1905, when it died. 

 The other cells were then opened, one contained a live larva, 

 the other four or five contained perfect insects all dead, appar- 

 ently unable to emerge. The capability of insects to survive 

 for more than one season in the larval stage is probably an 

 evolutionary acquirement, and a necessity to those insects liv- 



ing on a food supply that is wholly dependent on climatic 

 conditions. As the writer has shown elsewhere in recording 

 a similar experience with Authidium consimile, this is a very 

 necessary acquirenu^nt in a country wjiere, as sometimes hap- 

 pens, no rain at all may fall, and no food supply Avould in 

 those seasons be available. The cells are stored \vith small 

 larvae of what species I am unable to determine. 



IS 



