212 Dr. A. G. Butler on 



This is a dry-season phase, differing chiefly from that of 

 the succeeding species in the more open veined borders to the 

 wings. 



49. Huphina corva. 

 Pieris corva, Wallace, Trans. Ent. Soc. ser. 3, vol. iv. p. 339 (1867). 



Java, Bali, Sumatra. B. M. 



The dry phase is usually slightly smaller than the wet and 

 the ground-colour of the secondaries below is sandy buff 

 instead of creamy white ; the discal series of spots is also 

 reduced in size. 



50. Huphina dissimilis. 



Huphina dissimilis, Rothschild, Deut. ent. Zeit., Lep. v. p. 440, pi. v. 

 figs. 5, 6 (1892). 



Celebes. 



Very like the dry phase of H. corva. 



51. Huphina lichenosa. 

 Pieris lichenosa, Moore, P. Z. S. 1877, p. 591. 

 Andamans. B. M. 



52. Huphina sumatrana, sp. n. 



An insular representative of H. nerissa ; the male of the 

 wet phase differs in its slightly inferior size, the absence of 

 the blackish bar connecting veins 1 and 2 on the primaries; 

 on the under surface the apical area of the primaries and 

 ground-colour of the secondaries saffron instead of primrose- 

 yellow, the veins gravel-brown excepting the median vein of 

 the primaries and the borders of the veins below it, which 

 are dark brown inclining to black. 



Expanse of wings 61 millim. 



<J, Sumatra (from G. & S. coll.). B. M. 



53. Huphina nerissa. 



<3 . Papilio nerissa, Fabricius, Syst. Ent. p. 471 (1775). 



J. Papilio amasene, Cramer, Pap. Exot. i. pi. xliv. A (1776), 



2 . Papilio coro7iis, Cramer, t. c. B, C (1776). 



Nepal, Darjeeling, Tonkiu, China. B. M. 



We have twenty-five selected examples of this species. 

 The dry phase has the under surface of the secondaries pale 

 creamy buff, with sandy-greyish veins and spots. 



