HIPPARCHIA GROUP. 215 



at once by its peculiar shape, which is well shown in our 

 figure of a Surinam specimen of C. chorinans. We have also 

 figured the earlier stages. The Butterfly measures from three 

 to four inches across the wings ; the fore-wings are black, and 

 so much produced at the tip so as to be almost hooked ; the 

 borders are yellow, and there is a broad yellow band running 

 obliquely from beyond the middle of the costa to the lower 

 part of the hind-margin, and towards the tip is a white spot ; 

 the base is brown. The hind-wings are brown, bordered with 

 yellow ; they are sub-quadrate, and have a short broad tail 

 projecting outwards from the lower angle of the hind-margin. 

 The male is further remarkable for the extreme atrophy of the 

 front legs, which are reduced to a mere knob, and for two con- 

 spicuous tufts of hair on the under surface of the fore-wings, 

 on the inner-margin, and at the hinder angle. 



The larva feeds on sugar-cane, and the perfect insect emerges 

 from the chrysalis in about eleven days. 



V. HIPPARCHIA GROUP. 

 (Satyrus group of Schatz and Rober.) 



This extensive group includes all the remaining Satyrina, 

 except those belonging to the Pronophila group, which is ex- 

 clusively Tropical American, and chiefly inhabits the Andes. 



The Hipparchia group includes, inter a/ia, all the European 

 genera, except Pararge and Satyrus. Schatz and Rober divide 

 the genera into four sections, as follows : 



1. Euptychia seclion. Most of the sub-marginal eyes de- 

 veloped. Several longitudinal lines on all the wings. Costal 

 and median nervures of the fore-wings inflated at the base. 

 (N.B. Oresnnoma is aberrant.) 



2. Ypthima section. Generally with one or two ocellated 

 spots at the apex of the fore-wings, which are frequently united 

 into one large eye with two pupils. Lines on the upper side 



T 



