134 HELICONIA. 



depressed, with a series of long fleshy lobes on each 

 side ; that of H. Calliope short and cylindrical, 

 clothed with slender spines and tufts of hair : these 

 species form the genus Nerias, although they are 

 too dissimilar to be associated with propriety. Others 

 are smooth ( H. PsidiiJ, and some are covered with 

 very long white hairs ( H. BiciniJ. In these cir- 

 cumstances, it is not likely that a natural arrange- 

 ment of this pretty group will be effected until we 

 become better acquainted with the caterpillars, very 

 few of which have hitherto been examined. Chry- 

 salis invariably suspended by the tail only. 



These insects, as has been already mentioned, are 

 confined to America and the "West India Islands, 

 the larva subsisting on the different kinds of Passi- 

 jlorae, a beautiful tribe of plants well known to be 

 likewise peculiar to the new world. They seem to 

 be represented in India, as Dr. Horsfield remarks, 

 by the genera Euploea and Idea. 



