182 On neio Species 0/ Deliai5 /Vo?« North New Guinea. 



Upperside : fore wings white, with black costal border and 

 large apical black patch, the division between fairly but not 

 sharply defined. 



Hind wings very similar, the marginal black border not 

 well defined. Fringes of fore wings black, of hind wings 

 black and white. 



Underside : fore wings black, a large white patch extends 

 from inner margin to near the end of the cell, the remainder 

 of which is filled with dark grey; below the cell the patch 

 extends beyond the cell, but not quite so far as the angle ; a 

 band of five transverse spots occurs before the apex, the one 

 on the costa is yellow, the others are white. 



Hind wings black, the fold powdered with orange scales. 



Basal patch very small, Indian yellow ; a narrow white 

 costal band expands into an irregular transverse band, 

 reaching nervure 2, but constricted and nearly divided in the 

 middle ; along the nervures this white band extends in a 

 series of sharp points. 



Beyond this is a band of six irregular yellow spots, the 

 four lower ones being connected to the costa by narrow white 

 lines. There is an interrupted white marginal line, and the 

 fringes of the hind wings are mostly white. 



Across the disk are three ill-defined yellow spots. 



Expanse 57 ram. 



Hab. Momi, 4000 feet, November and December. 



I have not been able to discover any deviation from the 

 neuration common to all members of this genus, nor is the 

 amount of variation considerable among the species sent 

 home. It will be noticed that the greater number come 

 from the higher locality and that for the most part the insects 

 do not occur in both localities ; but this would require further 

 confirmation from the collector. 



The localities are in the Arfak Mountains, in the north- 

 east of Dutch New Guinea, not far from the Equator. 

 M. L. M. d'Albertis visited the neighbourhood about 1872, 

 but does not appear to have collected many butterflies. 



All the types are in my collection. 



The measurements are taken by measuring the costa from 

 the thorax to the apex and doubling it. 



EXPLANATION OF THE PLATES. 



Plate VI. 



Fiffs. 1, 1 a. Delias fuliyinosus, c? & $ . 

 Fig. 2. Delias pratti, ^ . 





