114 INSECTS INJURIOUS TO THE APPLE. 



caterpillars are wanting in this species, and the larva glides 

 alonsc with a snail-like motion. 



The cocoon is rounded, almost spherical, and is surrounded 

 with a loose silken web. 



The moth (Fig. 113) appears on the wing from the middle 

 to the end of June ; but it is a rare insect, and is seldom 



captured even by collectors. The 



Fig. 113. wings are of a deep, rich, reddish, 



velvety brown, with a dark streak 



about the middle of the fore wings, 



extending from the body half-way 



across, and on this is a golden 



spot; there are also two golden 



spots near the apex of the wing. When the wings are spread 



they measure nearly an inch and a half across. 



In the larval state this insect is preyed on by a small Ich- 

 neumon fly, and, never being abundant, other remedies are 

 not needed to subdue it. 



No. 50. — The Apple-leaf Miner. 



Tischeria malifoliella Clemens. 



The larva of this insect lives within the leaf of the apple- 

 tree, between the upper and the under skin, devouring the soft 

 tissues, and burrowing an irregular channel, which begins as 

 a slender white line, dilating as the larva increases in size, and 

 ultimately becoming an irregular brownish patch, sometimes 

 extending to, or over, the place of beginning. The caterpillar 

 is of a pale-green color, with a brown head, and the next seg- 

 ment brownish. 



When about to change to a pupa, the leaf is drawn into a 

 fold, which is carpeted with silk, and in this enclosure the 

 chrysalis is formed, the change occurring during September. 

 When the leaf falls, its occupant falls with it, and remains on 

 the ground within the folded leaf until the following May. 



The moth is a tiny creature, measuring, when its wings are 

 spread, a little more than a quarter of an inch across. Tlie 



