19 



Colony 20— Concluded 



I'licTc was no further development of this colony, as the weather 

 became too cool. Sexeral aclnlts died. December 2, I transferred 

 the colon}' to a warm room. December 20 the (|ueen began laying 

 again, and by January 10 she had laid 17 eggs. January 19 the queen 

 died and the colony was discarded. 



Assuming that the first 6 eggs developed into the fir.st 6 adults, 

 the lengths of the various stages are as follows : 



For first egg, 24 days; for next 3 eggs, 25 days; and for next 

 2, 26 days. 



For first larva, 22 days; for next one, 25 days; for next one, 

 28 days; for next one, 33 days; and for next (2 larv?e), 32 days. 



For fir.st pupa, 21 days; for next (2 pupas), 20 days; for next 

 pupa, 1 8 days; and for next (2 pup?e), 19 days. 



