Insects Injurioits to the Potato and Applf;. 589 



chrysalids and remain inside the curled up leaves in a web. 

 Hand picking would appear to be the only remedy for this 

 pest. 



The larva of Pajpilio Turnus, Linn.^ our largest species 

 of butterfly, one of the swallow tailed group, sometimes 

 injures apple, as well as other trees. The butterfly is yellow 

 with black bands, especially about the middle and edges of 

 the front wings. It is four or five inches across the wings 

 when fully expanded. The caterpillar, or larva, lives upon 

 the leaves of various trees, folding them up so as to form a 

 sort of case, the edges being held together or near each 

 other by a web. It is two inches or more long, green, with 

 rows of blue dots, a yellow spot, with a large black center 

 on each side of the third ring from the head, which is pink- 

 ish as is the under side of the body. It is found in July. 

 I do not know that it has ever occurred in this State in suf- 

 ficient numbers to do much damage. If it should hand 

 picking would easily remove the chrysalids which hang on 

 the trees from August until June. 



There is a small caterpillar, known as the fall web 

 worm, that sometimes attacks apple trees, devouring the 

 upper part of the leaf. It is about one inch long 

 when fully grown. Its color is greenish yellow, spotted 

 with black, a broad, yellow stripe running down the back, 

 and a yellow one on each side. The head and feet are 

 black and the body is warty, and from the warts come 

 bundles of soft hairs, and the moths of this species, 

 Hyphantria textor,Ha7\,2ive white, one and one-fourth inches 

 across the expanded wings. Another small caterpillar, of a 

 yellow color, with bright red head, and with a conspicuous 



