ON NEW AND LITTLE-KNOWN BUTTERFLIES. 303 



the costa and abdominal margin whitish ; a narrow anteciliary black 

 line which widens out at the apex and is continued some distance 

 along the costa ; anal lobe entirely black ; tails black, tipped and 

 edged with white. Underside, both wings pale French-grey ; a very 

 indistinct submarginal darker fascia. Forewing with a discal, some- 

 what irregular, slightly outwardly curved, dark French-grey band or 

 line, outwardly denned with white, commencing at the second subcostal 

 nervule, ending on the submedian nervure. Hindwing with a similar 

 discal line but much more irregular throughout its length than on the 

 forewing, posteriorly highly zigzagged and recurved to the abdominal 

 margin ; a large round black spot on the margin in the first median 

 interspace, prominently anteriorly crowned with yellow ; the submedian 

 interspace on the margin white sprinkled with black scales ; the anal 

 lobe bearing a small deep black spot, which bears outwardly some 

 metallic green scales ; anterior to this spot is a short yellow fascia reach- 

 ing the abdominal margin, well separated from the yellow patch in the 

 first median interspace ; a fine black anteciliary thread, inwardly 

 defined by an equally fine white thread. Face white in front. Palpi 

 with the first and second joints white, the third black. Eyes surround- 

 ed by a white line. Antennce black, the shaft finely annulated with 

 white. Body above blue, beneath whitish. Legs white, prominently 

 ringed with black. 



In general appearance this species very closely resembles Britomartis 

 cleoboides, Elwes, and B. buto, de Niceville, differing structurally, 

 however, in possessing three instead of two subcostal nervules to the 

 forewing. From the female of B. cleoboides it differs on the upperside 

 of the forewing in having the blue area of greater extent, thereby 

 reducing the black apical area by about one-half ; the anal lobe of the 

 hindwing is entirely black, in B. cleoboides it is crowned with ochreous, 

 and bears some metallic blue scales. On the underside of both 

 wings the discal line in B. cleoboides is distinctly deep ochreous, almost 

 ferruginous (Elwes calls it " pale yellow," but viewed under a strong 

 magnifying glass it is really dark yellow) instead of dark French- 

 grey, it is also outwardly curved, in B. cleoboides it is very straight in 

 all my twenty specimens (seventeen males- and three females), on the 

 hindwing also the discal line is very much more irregular ; the two 

 yellow anal areas do not meet as they do in B, cleoboides ; and the 



