1914] . Lafe History of Lady Beetles. 223 
Three beetles captured July 15, 1907 hibernated and the 
last one died August 31, 1908, 13 months and 16 days from 
date of capture. In this cage, during 1907, only four eggs 
were laid, though it contained 9 beetles, but after hibernating, 
eggs were laid rather abundantly, though they were infertile, 
by one or more of the surviving three from May 11, 1908 to 
July 18, 1908, a duration. of 2 months and 7 days. Three 
other beetles which were captured May 15, 1908, and in all 
probability had hibernated, lived until September 8, 1908, so 
they must have been a year old, at least, eggs having been laid 
from May 18, 1908 to August 18, 1908, a period of three months. 
No egg records were taken on this species, as only captured 
females laid at all satisfactorily and these had doubtless laid 
a portion of their eggs while still out of doors, so a complete 
record could not be gotten. The earliest eggs obtained in the 
spring were found May 11, 1908, laid by females which had 
hibernated in captivity; June 16, 1909, from captured females. 
The latest record obtained in the fall was September 3, 1909, 
but as this was the only year that a record was taken and as 
August was very wet and cool, the beetles would probably be 
able to lay for a month later, at least, under favorable condi- 
tions. . 
The earliest generation reared emerged June 24, 1908, and 
began to lay July 17, 1908, and the last beetle died September 
15, 1908, probably due to the unfavorable weather. Later 
batches of the same generation which emerged July 4, 1908, 
later went into hibernation but died during the winter. Beetles 
emerging July 5, 1909, the earliest generation obtained that 
year, went into hibernation. 
It seems that this species may have both one and two 
generations in a year, since some of what were evidently first 
generation beetles went into hibernation while others of this 
same generation laid eggs, infertile though they were, and died 
before winter. 
In feeding capacity they were about the same as 5-notata. 
One larva from time of hatching to pupation ate 388 plant 
lice, (23 A. torticauda, 65 C. negundinis, 165 C. populicola, 90 
A. setariae, 45 M. ambrosiae); another ate 376 plant lice, (12 
A. torticauda, 120 A. setariae, 174 C. negundinis, 40 C. populi- 
cola, 30 M. ambrosiae). another ate 901 plant lice, (150 A. 
