BUTTERFLIES. 149 



dentated, and are usually adorned with at least two tails. In 

 several South American genera placed near the end of the 

 Nymphalince, the hind wings are adorned with a moderately broad 

 spatulate tail. Hypna, Clytemnestra, Hiibn., a brown butterfly with 

 a yellowish- white band across the fore wings, is one of these ; it 

 is common in most parts of South America, or else there are a 

 number of closely-allied local forms in different localities. 



The species of Ancea, Hiibn., are of moderate size, not much 

 exceeding two inches in expanse, and are generally of a dark 

 brown, more or less blue at the base, this colour frequently 

 extending over a great part of the wings ; in other species the 

 prevailing shade is red. 



The genus Protogonius, Hiibn., is remarkable for its singular 

 form ; the wings are long, and of a black and tawny colour, as in 

 some of the Eeliconince ; but the fore wings are strongly arched, 

 and there is a projection in the middle, extending further than 

 either the tip or the hinder angle ; the hind wings are furnished 

 with a rather long spatulate tail. The species are confined to 

 tropical America. 



Before finally quitting the Nymphalidce, we must not forget to 

 notice the genus Siderone, Hiibn., which has pointed fore wings, 

 and rounded and slightly dentated hind wings, with a short pro- 

 jection at the anal angle. The under surface is mottled, and 

 there is an oblique stripe as in Kattima, which this genus probably 

 represents in America ; the under surface of all the species has 

 more or less resemblance to a dead leaf; but the upper surface 

 differs considerably in the two principal sections of the genus. In 

 one it is black, with rich scarlet markings, and in the other it is 

 varied with tawny and yellowish. Like Kallima, too, the species 

 which most resemble dead leaves are very variable; and varia- 

 bility appears to be a usual accompaniment of this peculiar form 

 of protective mimicry. 



FAMILY II. Lewoniidce. 



Front pair of legs rudimentary in the male, and fully developed 

 in the female ; species of small size and delicate formation ; pupa 

 attached by the tail. 



SUB-FAMILY I. Libytheince. 



Palpi contiguous, four times as long as the head, and forming 

 a kind of beak ; wings angulated ; pupa suspended by the tail. 



