164 Mr. 0. Salvin on new Species of Butterflies 



on the under surface, which is paler), antennse, nervures, and 

 a broad margin to both Avings black, the latter having obsolete 

 white spots on the outer margin ; the abdominal margin of the 

 hind wing has a yellow spot, 



$ . Similar to the male, but rather larger, and the outer 

 black margin of the hind wings broader. 



Underside differs only from the upper in having the white 

 submarginal spots more clearly defined. 



Hab. Pozzuzo, East Peru [Pearce). 



Ohs. hikelthomia cte?io,Dby.&HeAV.,but differs as follows: — 

 The anffle the lower discoidal nervule makes with the median 

 is more obtuse, the lower radial is emitted above the recurrent 

 nervule, the yellow patch of the hind wings is more restricted, 

 and the subcostal branches of the anterior wings are included 

 in the black margin. On the underside the white spot at the 

 base of the posterior wings of /. cceno is absent, and in the 

 present species the under surface of the abdomen is dusky in- 

 stead of bright yellow. 



3. Ithomia tricolor. 



? . Exp. 2*60 in. Antennae black, yellow at the tip ; palpi 

 black, with lateral streaks of white ; head black, with white 

 spots ; thorax and abdomen black, the latter grey beneath ; 

 anterior wings dusky black, with diaphanous patches, one, in- 

 distinct, at the base of the cell, another, distinct, at the end, 

 one between the first and second median branches, and a large 

 patch beyond the cell divided by the subcostal and radial 

 nervures : posterior Avings tawny orange ; costal and outer 

 margin black ; this black border is broader at the apical angle, 

 where it almost includes a whitish spot at the end of the cell, 

 and then tapers off at the anal angle : beneath as above, 

 but rather paler ; six white spots near the outer margin 

 of both vvangs show through to the upperside ; the base of the 

 costa of the posterior wings is white, and a large white patch 

 spreads over and outside the cell, with the origin of the second 

 median branch as its centre : neuration of hind wing as in ? 

 Ith. cceno ; but the wing is more elongated, there is no upper 

 discocellular, the upper radial appearing as a branch of the 

 subcostal. 



Hab. Apolobamba, North Bolivia (Pearce). 



Obs. This species belongs to the group containing ItJiomia 

 cceno ^ and to the section Ceratinia of Bates's arrangement. It 

 is, however, quite different in coloration from any species with 

 which I am acquainted. 



4. Ithomia seniifulva. 



^ . Exp. 2*60 in. Antennse yellow, black at the base ; 



