— no — 



being snowy white and occurring massed in great numbers on the 

 twigs of the apple trees readily attract attention. Fig. 6, which 

 was engraved from a photograph of natural size, gives the char- 

 acteristic appearance of a twig bearing these cocoons. 



The cocoons are from one-fourth to five-sixteenths of an inch 

 in length, and about one-eighth as wide. They are cylindrical 

 in outline, tapering but slightly towards the ends. They do not 

 end sharply ; but a delicate web of silk is continued over the 

 twig for some distance beyond the end of the cocoon proper. 



Within this cocoon the insect remains throughout the winter in 

 the pupa state. In early spring, at the time the leaves expand, 

 the pupa works its way partially out from the cocoon, and then 

 changes to a moth, the empty pupa skin remaining attached to 

 the cocoon by the caudal end which is never withdrawn from the 

 cocoon ; several such projecting pupa skins are represented in our 

 figure. 



The moth measures from the tip of its head to the end of the 

 wings when they are folded at rest only about one-seventh of an 

 inch (3.5 mm.). 



This moth can be recognized by the following characters : The 

 head is very pale ochreous, and bears a prominent tuft, which is 

 tipped with brownish. The antennae are pale ochreous, and are 

 dotted above with dark brown. The fore wings are whitish, 

 tinged with pale yellowish, and freely dusted with brown. On 

 the middle of the inner margin of each there is a large, dark 

 brown, oval patch ; the two form when the wings are closed a 

 conspicuous, nearly round, dorsal patch. There is also on each 

 fore wing a dark brown streak, arising from the costa opposite 

 the oval patch just described, and extending to the inner angle of 

 the wing. This patch is broadest on the costa and tapers towards 

 the other extremity. At the tip of the wing there is a dark 

 brown apical spot, and in the fringe of the wing, an outer mar- 

 ginal line. The hind wings are pale, brownish ochreous. 



Soon after the moths emerge from the pupa state, they pair and 

 lay their eggs. These are oval in outline, and of a greenish 

 color, which is identical with that of the leaf. Their color and 

 small size, they being only about one one-hundredth of an inch 

 in length, render them very inconspicuous. The width of the 

 egg is a little more than half the length, and the surface of the 

 shell is rough and iridescent. After the egg is hatched the shell 

 collapses and turns black. 



