440' THE HAG MOTH. 



In ten or twelve days, or about the middle of July, 

 the moth appears. This worm is attacked by a 

 parasitic insect, which feeds upon it until it has 

 attained its growth, and then perforates the skin of 

 the palmer worm, and spins its own cocoon. Of 

 course it kills the worm upon which it has preyed. 

 The most effectual method for the destruction of 

 the palmer worm is to syringe the tree, by means of 

 a garden engine, with a strong solution of whale- 

 oil soap. Heavy showers dislodge the worm ; and 

 it is therefore only in a season of long drought that 

 they can increase so as to become injurious to any 

 great extent (Fitch). 



(6) The Hag Moth — Limacodes pethecium : Smith. 

 In its very slow motion, this resembles a slug. It 

 attacks the apple and the cherry. Its color is brown, 

 and it is covered with short, downy hairs. Its body 

 is nearly oblong square, and about one inch in 

 length. The moth appears in June, and the larvae 

 consume the leaves until the middle of September 

 (Harris). 



(7) The Unicorn Moth — Notodonta unicornis. This 

 attacks both the apple and the plum. It is an inch 

 or more in length, and is generally solitary in its 

 habits. " The top of the fourth ring of this cater- 

 pillar rises in the form of a long horn, a little slop- 

 ing forward." The tail and hindermost legs are 

 always raised, except in walking. Its head is large, 

 and brown in color; the sides of the next two rings 



