258 TINEIDS. 
make these mines, form peculiar silken cases in which they 
pupate, and as these cases are of different shapes they are 
evidently made by different insects. A number of moths 
have been described which make these mines; they are: 
Antispilla viticordifoliella Clem., A. ampeliopsiella Cham., 
and A. isabella. These moths are very much smaller than 
their names, and do not occur in sufficient numbers to cause 
any serious injury. They are frequently parasitized, not- 
withstanding their apparently perfect protection by leafand 
silky cocoon. 
THE SPOTTED TENTIFORM MINE OF THE APPLE. 
(Lithocolletis crategella Clem.). 
The caterpillar of this insect makes on the under side of 
an apple leaf a tentiform mine, which has the upper surface 
2 
Fig. 232.—Lithocolletis cratxgella Clem. After Comstock. 
spotted and honey-combed. When we open such a mine 
early in September we discover in it a yellowish larva of a 
