Feb. 14,1916 
Colorado Potato Beetle 
925 
of Columbia and localities having the same mean temperatures, part of the 
adults of the first and second generations hibernating, wnile the re¬ 
mainder lay eggs from which the second and third generations develop. 
Furthermore, the possibility of a partial fourth generation is suggested 
by the fact that the beetles of the third generation were active and 
feeding voraciously during September, 1914. This insect is to be found 
in all stages during the summer months, and there is much overlapping 
of generations. 
22533°—16 - 2 
