431 



Colony 30 — Concluded 



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

 became too cool. Several adults died. December 2, I transferred 

 the colony to a warm room. December 20 the queen began laying 

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

 died and the colony was discarded. 



Assuming that the first 6 eggs developed into the first 6 adults, 

 the lengths of the various stages are as follows : 



For first tgg, 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 larvae), 32 days. 



For first pupa, 21 days; for next (2 pup?e), 20 days; for next 

 pupa, 18 days; and for next (2 pup?e), 19 days. 



