6 
THE CODLING MOTH. 
or flesh color and about three fourths of an inch in 
length when full grown. 
The brown shining chrysalis is shown in the 
cut at d , and the silken cocoon that always sur¬ 
rounds it at i. 
All of the illustrations in the figure are natural 
size. 
LIFE HISTORY. 
Professor James Cassidy, in Bulletin 6 of this 
station, page 2, says that in that year (1888) the 
moths were plentiful towards the end of April. 
According to the meteorological record of that year 
April was a very warm month at this place, the 
lowest morning temperature being 38° and the noon¬ 
day temperature being, much of the time, above 70°. 
The time of appearance will always depend on the 
earliness of the season and upon the warmth of the 
particular place in which the insect winters. 
There is also a considerable difference of opinion 
among writers as to the time when the moths begin 
to deposit their eggs. 
From careful observations made in Iowa the 
writer concluded * that the eggs did not hatch there 
until a month, at least, after the flowers fell from 
(Duchess) apple trees. 
As bearing upon this subject I quote the fol¬ 
lowing from an article that appeared in the Pacific 
Rural Press of June 8th 1889 from the pen of Mr. 
* Bulletin 7 oj the Iowa Experiment Station , 
Page 277. 
