224. LEAF-FOLDERS. 
slate color, with a pale tuft of hairs at the tip of the 
abdomen. 
Prof. John B. Smith who has studied very closely the 
insects infesting the cranberries, has come to the conclusion 
that by keeping the bogs covered with water until after the 
middle of May, thus compelling the moths to deposit their 
eggs on other plants belonging to the same natural family, 
the intelligent cranberry-grower can prevent or greatly 
lessen the damage done by this and allied insects. 
THE LESSER APPLE LEAF-FOLDER. 
_(Teras minuta Rob.). 
This insect occurs sometimes in great numbers and is 
consequently injurious to apple-trees, especially the younger 
ones, or those still in the nursery, and causes them to look 
as if scorched by fire. The caterpillars are small greenish 
larvee, smooth, with pale brown 
heads and whitish markings. 
They appear early in spring, and 
by drawing together the still 
tender leaves with silkenthreads 
they form a sort of protecting 
roof over themselves, which 
serves both as a shelter and as 
food. The second brood does 
Fig. 210.— Teras minuta Rob., NOt form this protecting shelter, 
Sete sane pia phigaan eater Tiger? Dut simply constructs a web over 
Se ae ae the surface of the leaf. The full 
erown caterpillar eats off the upper cuticle of a por- 
tion of a leaf, and then brings the edges together, tying 
them with silken threads, so as to form a snug little retreat 
lined with white silk, inside of which it changes to a brown 
pupa, about three-tenths of an inch long. Some segments of 
the pupa are furnished with minute spines and the posterior 
