290 



Wisconsin State Horticultural Society. 



will be found masses of eggs attached to an old cocoon, in the 

 other a brownish colored worm enclosed in a twisted, hornlike case, 

 large at one end and tapering to a point at the other. Sometimes 

 the dried leaves are found bound tightly to the twig, as is repre- 

 sented by b in Fig. 13; in which case the sheath enclosing the 

 larva is generally found glued to the twig itself, the bark being 

 gnawed off where the attach- 

 ment is made. In others the 

 leaves hang more loosely, and 

 in the worm-inhabited cases may 

 be found sometimes two or more 

 Curled up within and fastened 

 with silken cords. In this way 

 the worms go into winter quar- 

 ters when about one-third grown. 

 As the leaves appear in the 

 spring, they move from the old 

 quarters and form a new shelter 

 of fresh leaves and continue 

 itheir work of destruction, com- 

 ing out of their case to feed, 

 generally in the night. It not Fig. 13. 



only eats the leaves, but often Rascally Apple-Leaf Crlmpler. 



gnaws the fruit, imbedding itself «• Ca6e for shelter; b. dry leaves containing 

 . . . case; c. head and first segment ; d. moth. 



ii the side of the apple; it also 



gnaws the tender bark of the twigs, and eats out the buds. This 

 case to which it retires for shelter when not feeding or when 

 danger threatens, is made of the excrements of the worm and 

 the refuse of the leaves on which it feeds, interwoven and lined 

 >witTi silk. 



The worm, when fully grown, is about six-tenths of an inch in 

 length; its head, represented by c, Fig. 13, is a dark, reddish brown, 

 covered with a horny-looking plate, which also extends over part 

 of the second segment. The brown color of the body during the 

 fall and early spring, now changes to a dark green on the back, 

 with a lighter shade underneath. On the side of the second and 

 third segments, there is a small black protuberance, and a small 

 black spot on the side of each of the other segments, each of which 

 contains a single light brown hair. It usually passes into the pupa 



