THE APPLE LEAF-MINER 47 
are partly folded under the body. In this way the insect rests 
on the fore legs and the end of the abdomen. 
The female moths, soon after emerging, get the ege-laying 
habit. The production of eggs seems to be their sole object 
in life, for after continuing the operation for two or three 
days, without awaiting the result they die. It is not known 
just how many eggs are produced by the moths, but we have 
observed a single moth deposit as many as thirty-eight. It is 
probable that they are capable of producing twice this num- 
ber. It is difficult to follow them during the operation, for 
the same moth seldom deposits more than five or six eggs on 
the same leaf. 
The eggs soon hatch and produce the second brood of cater- 
pillars, which possess similar habits to those of the first brood. 
They grow more slowly than those of the first brood, not 
reaching maturity until about September Ist, or possibly later. 
About this time they cease eating and proceed to make their 
quarters comfortable for the winter. Unlike the mines of the 
spring brood, those of the second brood are densely lined with 
fine white silk. In these comfortable quarters the larvae spend 

Fic. 11—Unspotted Tentiform Mine in an apple leaf (slightly en- 
larged). 
