20 



This gives for the first 6 eggs an average time of 25 days; for 

 the first 6 larvae, 28.6 days; for the first 6 pupae, 19.5 days. 



In colony 2yb the average time for the first 6 eggs is 44.5 days; 

 for the first 6 larvae, 19.5 days; and for the first 6 pupae, 23 days. 

 In colony 27a the average time for the first 6 eggs is 46 days; for 

 the first 6 larvae, 28 days; and for the first 6 pupae, 34.5 days. 



The queen in colony 30, laid a total of no eggs, from which 11 

 adults were reared. Five individuals disappeared in the pupal stage, 

 18 in the larval stage, and 64 in the tgg stage. 



COLONY 28 



April 5, I took a solitary queen from her cell in a corn field and 

 placed her in a Fielde nest under normal temperature conditions. 

 She began to lay May 16. By August 25, when she died, she had 

 laid 54 eggs, from which but one adult was reared. Twenty-four 

 individuals disappeared in the tgg stage, 27 in the larval stage, and 

 one in the pupal stage. Forty-eight of the 54 eggs were laid between 

 May 16 and June 2. After that date the queen did not seem to do 

 well. The lengths of the tgg periods for the first 6 eggs are as 

 follows: for the first (i), 25 days; for the next (i), 24 days; and 

 for the next (4), 25 days. 



Because of the fact that this queen did not take good care of the 

 young, most of them perished and I could not get the lengths of 

 the stages. 



COLONY 18 



This queen was carried over winter in a Fielde nest in a warm 

 greenhouse. She began laying April 10. By June 27, when she 

 died, she had laid 93 eggs. But 3 pupae were reared from these, 29 

 disappeared in the larval stage, and 61 in the &gg stage. The lengths 

 of the egg stages for the first 6 eggs are as follows : for the first 2 

 eggs, 26 days ; for the next 4 eggs, 23 days. 



This gives an average of 24 days as the length of the tgg period 

 for the first 6 eggs. No eggs disappeared in this nest until after the 

 larvae appeared, so the stages here may be taken as exact. 



COLONY i8c 



This queen was taken in the fall and carried over winter in a 

 warm greenhouse, but on March 25, before she had laid any eggs, 

 was transferred to a room where the temperature was normal. She 



