96 



INSECTS INFESTING THE APPLE TREE. 



not feeding, it rests upon the upper side of this web. The 

 young caterpillar is of a black or brownish color, marked with 

 flesh color or white. 



Fig. 70. — Caterpillar 

 of Turnus Butterfl}' — 

 colors, green, yellow, 

 and black. 



When fully grown 

 (Fig. 70), it measures 



from one inch and six lines to two inches in length, and is of 

 a bluish-green color ; on each side of the third segment is a 

 black spot, centered with blue and surrounded by a yellow 

 ring, and this by a black one ; on top of the fourth segment is 

 a transverse yellowish ridge, in front of which is a row of four 

 blue dots ; on top of the last segment is a transverse yellowish 

 ridge ; head, pinkish-brown. When about to pupate, this cat- 

 erpillar suspends itself by the hind-feet and a transverse band 

 of silken threads which is passed around the forepart of the 

 l)ody. It assumes the chrysalis form in the Autumn, and the 

 butterfly does not issue until the following S))ring. 



Fig. 71. 



Fig. 71. — Turnus Butterfly — colors, yellow, black and 

 orange. 



