444 Some apparently new Noctuidae from Sumatra, etc. 



species known to me ; but as the distinction between these two genera 

 seems to me at best very slight and Belciana is the older name I employ 

 it for kala. 



18. Belciana particolor sp. nov. (pi. XV, fig. 4). 



$ , 45—46 mm. 



Antenna serrate to near apex, the serrations at middle of shaft 

 almost short pectinations. 



Vertex of head and thorax pale bluish-green with some yellow-green 

 intermixed ; face and tegulae pale orange-brown ; abdomen whitish 

 with the crests dark-brown ; palpus, pectus and legs whitish, the palpus 

 and legs with the usual brown and green shading. 



Fore wing pale bluish-green largely suffused with yellow-green, 

 nearly as in the typical form of B. kenrichi Beth.-Bkr. (Diptheroides 

 kenricki Beth.-Bak., Nov. Zool., xiii, 203 [1906] [Brit. New Guinea]) ; 

 markings somewhat as in kenricki, but the orbicular larger, with a black 

 spot in the middle, the white markings more yellow, the reniform black 

 mark more erect and scarcely or not joining the bar from costa (which is 

 smaller than in kenricki), the black lines in particolor much less distinct. 



Hind wing coloured as in kenricki, but the dark shades reduced to 

 a slight discal bar, an indistinct postmedial line (ending at M 1 ) and 

 a narrow terminal band, which is more or less interrupted by yellowish- 

 white before the black marginal lunules. 



Underside somewhat as in kenricki, but with the blackish shades 

 brown, obsolescent ; the postmedial line of hind wing less angled. 



2 , 46—50 mm. 



Differs from the $ chiefly in the colour of thorax and fore wing, 

 the green shades being much duller and largely replaced by pale pinkish- 

 violet ; the yellow markings of the $ tending to become cerise-pink. 



Dutch New Guinea : Mount Kunupi, Menoo Valley, Weyland Moun- 

 tains, 7,500 feet, November, 1920, to January, 1921, two $ $ , seven ? ? . 



A single ? in coll. Joicey, from Angi Lakes, Arfak Mountains, 

 6,000 feet, having a similar orbicular, may possibly belong here, but the 

 reniform seems intermediate between this species and kenricki, the fore 

 wing is only slightly suffused with pinkish-violet and the dark tones 

 of the underside are stronger and blacker than in particolor. Perhaps 

 yet a third species. 



In the $ , particolor can be at once distinguished from kenricki by 



