FIELD BOOK OF INSECTS. 



clouded with brown is called nephele and replaces alope 

 in the north, New York City being in the tension 

 zone. Together, they and other varieties of alope cover 

 practically the whole of the United States and Canada. 

 Along the Atlantic coast some individuals (called mari- 

 tima) have the yellow band orange. The green larva 

 has no "horns" on its head and is devoid of markings 

 except for two pale stripes on each side; it feeds on grasses. 



The figure of the Snout-butterfly (Plate 

 Libythea XXXIII) saves further description. The 



bachmani 



"snout" is made up of elongated palpi 

 a characteristic of the subfamily Libytheinae, of which this 

 is the only representative in the Northeast, and probably 

 other U. S. forms are merely varieties. Curiously enough, 

 the males have only four usable feet although the females 

 have six. The larva feeds on hackberry and wolf berry; 

 its last two thoracic segments are slightly thickened; this 

 "hump" bears two black tubercles ringed with yellow; 

 the general body- color is green and there are three longi- 

 tudinal stripes of yellow. 



ERYCINID^E 



According to the system followed here, the same as is 

 used by Holland in his Butterfly Book, all the species thus 

 far considered belong to the family Nymphalidae. We 

 come now to the Lemoniidae or Erycinidas, a family whose 

 chief home is the American tropics. Their common name 

 is Metal-marks. The same sexual difference in legs "as 

 was noted in the Libytheinae and as exists also in the 

 Lycsenidae holds here. All the Nymphalid chrysalids 

 hang by their tails; the Erycinid chrysalids have their 

 tails fastened but they also have a silken support for their 

 backs which holds them upright. 



The Northern Metal-mark (Plate 



XXXIII) ranges from South Carolina 



to New York and Michigan and is the 



only Erycinid to be found so far north; a somewhat 



similar but smaller species (C. virginiensis, not ccznius) 



is found just south of it. 



130 



