90 INSECTS INJURIOUS TO THE APPLE. \ 



hairy. On the fore wings are two broad, dark -gray bands, in- 

 tervening between three narrow, wavy, white bands; tlie veins 



are white and prominent. The 



Fig. 88. i • j • vi i v 



hnid wings are gray, with a white 



hind border, and across the middle 



there is a broad, faint, whitish 



band. On the top of the thorax 



is an oblong, blackish-brown spot, 



widening behind. The males are 



not much more than half the size of the females; the former, 



when their wings are expanded, measure about an inch and a 



half across, the latter nearly two and a half inches. Like 



that last described, this is a rare insect, and one never likely 



to appear in sufficient numbers to be troublesome. 



No. 35. — The Oblique-banded Leaf-roller. 



Cacoecia rosaceana (Harris). 



This moth is a member of a very large family of small 

 moths called Tortrices, or, popularly, leaf-rollers, because 

 their larvae have the habit of rolling up the leaves, or por- 

 tions of them, forming hollow cylinders, firmly fastened with 

 silken threads, in which they live, and where they are partly 

 protected from birds and other enemies. Most of these 

 insects, when disturbed, slip quickly out of their enclosure 

 and let themselves down to the ground by a fine silken thread, 

 and thus frequently escape danger. 



• Soon after the buds of the apple-tree begin to open, the 

 caterpillars of the oblique-banded leaf-roller commence their 

 labors. They coil up and fasten together the small and tender 

 leaves, which thus furnish them at once with shelter and food. 

 When full grown, they are about three-quarters of an inch 

 in length, of a pale-green or yellowish-green color, sometimes 

 reddish or brownish, with the head and top of the first seg- 

 ment brown ; there is usually a darker green stripe along the 

 back, and a few smooth dots on each segment, from each of 

 which there arises a short, fine hair. In Fig. 89 this larva is 



