CALLIDRYAS. 229 



the male above the sub-costal nervure, near the base of the hind- 

 wings, instead of on the inner-margin of the fore-wings, as in 

 Catopsilia ; the wings are rounded, and the fore-wings are rather 

 longer than the hind-wings, with the apex generally rounded off, 

 and the hind-margin regularly curved and slightly oblique ; the 

 type is P. hersilia (Cramer), which is common in South and 

 Central America. In this genus the males of most of the species 

 are of an orange-yellow above, and the females are slightly 

 bordered or spotted towards the margins with brown, and are 

 marked with a black or brown discoidal spot on the fore-wings. 

 On the under surface both sexes present the characteristic 

 silvery discoidal spots, bordered with ferruginous, and are more 

 or less varied with incomplete ferruginous zig-zag lines and 

 mottlings. 



Another small genus, allied to P/uebis, is Rhabdodryas, God- 

 man & Salvin, which differs from Phcebis in having an additional 

 patch of closely-packed scales between the costal and sub- costal 

 nervures of the hind-wings. The type is R. statira (Cramer), a 

 yellow species, easily distinguished from any other Butterfly of 

 this group by having a straight black line running across all the 

 wings beneath. It is found in South America. 



The last genus of this group has been called Metura by Dr. 

 Butler, but this name had been previously used by Walker for 

 a genus of Moths belonging to the family Psychidce., and I there- 

 fore prefer to substitute the name Parura^ at Dr. Butler's sug- 

 gestion, for the present genus. The type will be P. tipris (Fab- 

 ricius). The males have a tuft of hair above the sub-costal 

 nervure of the hind wings near the base, as in Phabis, but the 

 fore-wings are shorter and broader in proportion, the costa 

 being much more strongly arched, and the hind-margin much 

 straighter and scarcely oblique ; the hind-wings are produced 

 into a short broad pointed tail at the anal angle. The Butter- 

 flies are qf considerable size, frequently exceeding three inches 



