376 Mr. A. R. Wallace on 



wliite, with the dark band browner, the apex ashy-violet, base of 

 the wings yellow tinged ; lower wings pearly-white, the border 

 glossy purplish-ash, uniform ; the inner margin with a fine yellow 

 edging. 



Expanse of wings 2-| inches. 



J2«6.— Bouru (Coll. Wall.). 



This is probably the female of a species allied to some of the 

 preceding. It combines the characters of several of them. 



32. Tachyris eiimelis, Boisduval. 

 Pieris eumelis, Bd. Sp. Gen. p. 516. 

 Hab. — New Ireland (Voy. Coquille). 



Appears to be near T. cynisca. I have not seen a spe- 

 cimen. 



S3. Tachyris panthea, n. sp. 



Form and size of T. nathalia $. 



Female. — Above, sulphur-yellow, the base broadly dusky- 

 black, the costa and outer margin to the anal angle broadly 

 black. 



Beneath, like T. nathalia $, but the disk of the upper wings 

 yellow, the apical band much wider ; the hind wings with a broader 

 pearly border, and a submarginal dusky sinuated band not reach- 

 ing the outer or the anal angles. 



Hah. — Philippine Islands (Coll. Hewitson and B. M.). 



The yellow colour is very powdery and easily rubs off, so that 

 worn specimens are white. The male will be like either T. na- 

 thalia or T. zamboanga. 



34. Tachyris crjcinna, Hewitson. 



Pieris cycinna, Hew. Ex. Butt. vol. ii. Pieris IV. f. 23, 26, $ . 

 P. ocina, Hew. I. c. f. 24, 25, $. 

 Hab.— Krw Islands (Coll. Wall.). 



In my collection I have two males and two females, forming 

 two pairs, which agree exactly, except that on the underside tlie 

 lower wings and the base of the uppers are in one pair pure 

 yellow, in the other bright orange. As they are all from the same 

 locality it is probably one of those cases in which a decided varia- 

 tion occurs in the same brood, with no intermediate links. 



