170 Mr. W. Warren on new 



costa beyond two thirds, oblique as far as third median, 

 below which it turns and runs straight outwards to hind 

 margin ; fringe white. Hind wings with large black discal 

 spot, with a smaller one nearer base, and black postmedian 

 line forming two large curves, one round the cell, the other 

 below it, to a black spot on inner margin ; fringe white 

 beyond a black marginal line. Head, thorax, and abdomen 

 white, tinged with greyish ochreous; a pair of black spots on 

 Iront of thorax and hrst segment of abdomen. Underside 

 white, with the markings fainter and in part obsolete. 



Expanse of wings 28 millim. 



Two females from the Khasias. 



Genus DiCHOCEOCiS, Led. 

 Diclwcrocis fuscijlmhriay sp. n. 



Fore wings deep yellow, suffused with orange; first line at 

 one fourth, oblique outwards, and angled on the median, thick, 

 dark brown ; outer line at four fifths, parallel to hind margin, 

 forming a sinus over the three median nervules, running 

 shortly inwards along the first median, and reaching inner 

 margin at three fourths ; cell-spot large, brownish ; a 

 smaller dot in cell towards base; fringes leaden grey, with a 

 darker basal line. Hind wings like fore wings, without the 

 basal line, and with the cell-spot smaller. Head, thorax, and 

 abdomen orange. Underside paler, without basal line. 



Expanse of wings 24 millim. 



Several of both sexes from Humboldt Bay, New Guinea. 



Plateopsis, gen. nov. 



Fore wings with costa straight, curved only at base and 

 before apex, which is blunt ; hind margin obliquely rounded. 

 Hind wings with both angles and hind margin evenly rounded. 

 Forehead broad, projecting, and flattened, with a small blunt 

 tooth in front ; labial palpi obliquely ascending ; second joint 

 thick, third small and pointed; maxillary palpi invisible; 

 tongue small ; antennse thick, short, lamellate, and pubescent. 

 Neuration : fore wings, cell not half as long as wing, first 

 median at five sixths, second, third, and lower radial at even 

 distances from each other, third from end of cell ; upper 

 radial from just above middle of discocellular ; last subcostal 

 from end of cell, which is bent down, so that the nervule 

 seems to rise from the discocellular; stem of third and fourth 

 from just before the angle, the second close to the latter, first 

 not far before second, bent up towards costal. Hind wings 



