392 APPENDIX. 



of the wings is made grey by single white scales ; 

 without the band, and near it, is a white spot. 

 Towards the exterior edge and tip are several in- 

 distinct grey spots. The under wings, quite at 

 the root, are blackish-grey, then a Uttle white-grey^ 

 and after this follows the sulphur colour, w^hich is 

 half-enclosed by a black band, which occupies the 

 greater part of the front, and the whole exterior 

 edge ; the middle tendons are also black. On the 

 under side, the grey spots on the tip of the superior 

 wings are transformed into five white ones. In the 

 lower wings, besides the yellow colour, there are 

 three longisb spots at the exterior edge, and a 

 round one in the middle. The root of the wings 

 is here scarlet. The back part of the body white, 

 the other parts black grey. 



XXI. PONTIA OLGA. 



p. alls anticis albis, venis margmeqiie 7iigris, sub- 

 tus apicejiavo maculatis, posticis aurantiacis^ margine 

 nigris. 



From Manilla. — This species is of the size of the 

 P. RapcVj and has the greatest similarity with Judith. 

 The upper wings are white ; the last end of the 

 sector edge, the whole exterior edge, and the 

 front tendons, are black. The under wings have 

 a gold yellow colour ; the front and external edge 

 are bordered with black. On the under side the 

 black colour of the upper side has become brown ; 

 the two middle tendons are coloured broader, and 



