41 



is so called because of its jerky flight. It fnay be seen" 

 about the trees in summer placing its eggs on the leaves, 

 and is a common visitor to many kinds of flowers, being 

 especially fond of nectar from the heads of red clover. 

 The species may be known from some fifteen other 

 skipping butterflies occurring in Kentucky by its super- 

 ior size and by a large silvery white blotch on the under 

 side of the hind wing. The front wings are marked by 

 one large and several small blotches of brownish yellow. 

 The mischief is done by the larva, a stout pale green 

 worm, with large, globular, reddish brown head to which 

 a comical expression is given by two round yellow spots, 

 very likely to be mistaken for eyes. 



The worms usually make their presence known by de- 

 vouring the leaves. They feed largely at night and dur- 

 ing the day are concealed in little shelters which they 

 construct by stretching bands of silk across from one 

 leaflet to another so as to draw them up and about their 

 bodies. When a tree begins to lose its leaves oue may 

 by close looking find the culprits by these rolled leaves 

 between which they lie. Several broods are reared each 

 summer, but the eggs appear to be deposited at intervals 

 during a considerable period of time, very young larvae 

 <3ccurring on the same tree with worms nearly grown. 

 The change to a quiescent pupa takes place within the 

 rolled leaves which are lined with silk for the purpose. 



The last brood does most of the mischief from 

 which the locust suffers. Many of the larvse are about 

 one-fourth grown at this latitude on August 20 and 

 change rapidly to pupse about September 15, remain- 

 ing in this condition over winter. 



The injury is to be checked by spraying. 



