SIDERONE. 189 



and in smaller proportions, with white, flesh-colour, blue, 

 &c. It is a rare insect ; the first specimen captured by Dr. 

 Wallace had settled on dung, and it was twelve years before a 

 second was brought to England. Hewitson considered it one 

 of the most beautiful species with which he was acquainted. 



Neotropical Region. 



The genus Zaretes, Hiibner, is remarkable for the dead- 

 leaf pattern of the under surface of the wings, which is more 

 pronounced than in any other Tropical American Butterflies. 

 The species are of moderate size, generally about two inches and 

 a half in expanse. The fore-wings are pointed, with the hind 

 margin, and the outer part of the inner-margin concave ; the 

 hind-wings are produced into a short tail at the anal angle. 

 The species vary from pale ochreous to reddish-fulvous, and 

 there are often two transparent spots on the fore-wings. The 

 few closely-allied species are common throughout Tropical 

 America, inhabiting thinned parts of the forest. 



Ccenophkbia archidona (Hewitson), from Archidoha in New 

 Granada, is a much larger Butterfly, exceeding four inches in 

 expanse. The fore-wings are extremely falcate, but otherwise 

 unusually regular in outline, not being concave or dentated ■ 

 the anal angle of the hind-wings is almost rectangular. The 

 wings are of a rich tawny above, with brown or black borders 

 not sharply defined ; the under side is brown, with tawny 

 mottlings and silvery spots, and the mid-rib of a leaf-pattern 

 running beyond the middle of the hind-wings to the tip of the 

 fore-wings ; outside it are sometimes side-ribs of the leaf. 



Siderotic^ Hiibner, has much resemblance to Zaretes, es- 

 pecially in size, shape, and the more or less developed tail at 

 the anal angle of the hind-wings. The species are about three 

 inches, or rather less, in expanse. The fore-wings are but 

 slightly pointed at the tip, and the hind-margin is rounded, 



