210 Dr. A. G. Butler on 



secondaries ; if both insects occurred in the same island, they 

 would undoubtedly represent wet and dry phases of the same 

 species, but there is no evidence at present that either insect 

 varies seasonally. 



42. Huphina aspasia. 



Papilio aspasia, Stoll, Suppl. Cramer, pi. xxxiii. figs. 3, 3 c (1790). 



Pieris asterope, Godart, Euc. MSth. ix. p. 154 (1819). 



Pieris jael, Wallace, Trans. Ent. Soc. ser. 3, vol. iv. p. 335 (1867). 



Amboina, Ceram, Bouru, Sulu Archipelago. B. M. 



H. jael from Bouru appears to have yellower secondaries 

 than typical //. aspasia, but our examples of the latter are 

 old and perhaps have deepened with age — a very common 

 occurrence among the Pierina?. 



43. Huphina olga. 



Pontia olga, Eschscholtz, in Kotzeb. Reise, iii. p. 214, pi. ix. figs. 21 a, b 



(1821). 

 Huphina imogene, Dokerty, Jonrn. Asiat. Soc. Beng. Ix. p. 188 (1892). 



Batchian, Philippines, Hong-Kong. B. M. 



The wet form, of which we have fourteen examples, attains 

 a greater size, is more heavily adorned with black veins and 

 borders, and is deeper in colouring than the dry form, of 

 which we have eighteen examples. //. imogene (figured by 

 Hombron and Jacquinot as H. Judith) belongs to the dry 

 phase. H olga differs from H. aspasia in the broader borders 

 to the secondaries. 



44. Huphina olgina. 



Pieris aspasia, var. olyina, Staudinger, Deut. ent. Zeit, Lep. 1889, 

 p. 19. 



Palawan. <$ $ , ? , B. M. 



Differs from //. olga in the clear butter-yellow of the sub- 

 apical spots of the primaries and of the secondaries on the 

 under surface. The female which we possess differs greatly, 

 the upper surface being chiefly ashy grey, with the usual pale 

 patches quite white. 



45. Huphina hester, 



5 . Pieris hester, Vollenhoven, Mon. Pier. p. 24, pi. iv. fig. 1 (1805). 



Mysol and Waigiou. $ , ? , coil. Hewitson. 

 Allied to H. olga. 



The following species, though possessing the pattern of the 



