BIDUANBINM. 185 



Genus BIDUANDA. 



Biduanda, Distant, Rhop. Malayana, p. 237 (1884). de Niceville, Butt, of India, iii, p. 424 (1890). 



Eyes naked. Forewing with vein 12 very short, ending on the costa some 

 distance before the upper end of the cell, 1 1 emitted from the middle of the cell, the 

 base of 10 slightly nearer the base of 11 than it is to the end of the cell, 9 very short, 

 from 7 close before its end, discocellulars upright, the lower slightly the longer, 

 vein 6 from near upper end of cell, 5 from near the middle of discocellulars, 3 from a 

 short distance before the lower end of the cell, sub-median vein slightly sinuous ; costa 

 evenly arched, apex rather rounded, outer margin slightly convex, hinder angle 

 rounded, hinder margin strongly bowed outwardly at its middle in the male, nearly 

 straight in the female. Hindwing, vein 8 ends on costa a little before the apex, 

 discocellulars almost in a straight line, slightly outwardly oblique, vein 3 emitted a 

 little before the lower end of the cell, internal vein long and recurved. Costa strongly 

 arched in the male, much less arched in the female, apex much rounded in the male, 

 less rounded in the female, the outer margin strongly angled at the end of vein 3, 

 abdominal margin somewhat deeply incised above the anal lobe, a distinct anal lobe 

 and three tails, the middle one the longest, the inner tail about half as long, the outer 

 tail very short ; a glandular patch of differently formed scales on the upperside of the 

 wing, placed around the base of vein 7, the larger portion of the patch lying between 

 that nervule and vein 8 ; the bowed portion of the hinder margin of the forewing 

 covering the patch. 



Type, Myrina thesmia, Hewitson. 



BIDUANDA FABRICII. 



Plate 739, figs. 1, <J, la, $ , lb, ^ . 



Drupadia fabricii, Moore, Journ. Linn. Soc. Zool. Lond. 1884, p. 32. 

 Biduanda fahricii, Moore, I.e. 1886, p. 42, pi. 4, figs. 2, ,J, 3, $ . 



Biduanda thesmia, Doherty (nee Hewitson), Journ. As. Soc. Bengal, 1889, p. 425. de Niceville, 

 Butt, of India, iii. p. 426, pi. 29, fig. 229, ^ (1890). 



Imago. — Male. Upperside dark brown, with a purple tint. Foreiving with a 

 small space outside the lower end of the cell dull red. Hindwing with the costal space 

 pale, a black marginal line well developed hindwards, with a distinct but narrow white 

 band on its inner side from the anal angle to the end of vein 3 ; tails black, tipped 

 with white and with white cilia. Cilia of both wings black to the middle of the 

 hindwing, from thence to the anal angle and for a short distance up the abdominal 

 VOL. IX. 2 B 



