332 Mr. A. R. Wallace on 



locality, but that is not to be trusted to, as collections made in 

 other parts of the Archipelago are so frequently to be obtained in 

 Java. I am sorry to be obliged to cancel the name of an insect 

 which Dr. Felder has kindly dedicated to myself. 



9. Pieris perictione, Felder. 



Pieris perictione,¥e\d. Voy. Novara, p. 168. 



Hab. — Aru Islands. 



This seems to be very near P. rachel. I have not seen a speci- 

 men. 



10. Pieris pitys, Godart. 

 Pieris pihjs, God. Enc. Meth. ix. p. 134; Bd. Sp. Gen. p. 470. 

 //a6.— Timor (Wall.). 



The wings in this species are more rounded than in P. rachel, to 

 which it is very closely allied. It is well described by Boisduval. 



11. Pieris mentes, n. sp. 



Male. — Above, like P. pitys, but with an ashy tinge on the fore 

 wings, and generally two spots at the apex. Beneath : the upper 

 wings are black, with the basal half yellow-tinged and the inner 

 margin white, a small white mark at the end of the cell, and the 

 apical spots (3 or 4) yellow ; the hind wings as in P. pilys. 



Hah. — Lombock, Flores (Coll. Wall, and W. W. Saunders). 



The dark underside of the fore wings distinguishes this very 

 readily from pilys and rachel. 



12. Pieris nahis, Lucas. 



Pieris nahis, Lucas, Rev. et Mag. de Zool. 1852, p. 326, $ . 

 P. perithca, Feld. Voy. Novara, p. 169, J , 



//ai._Australia, Moreton Bay (Coll. Wall.), Sidney and W. 

 Australia (Coll. W. W. Saunders). 



A distinctly marked species, closely allied to P. rachel. A 

 specimen in the Brit. Mus. from New Hebrides has the fore wings 

 more concave, and the hind wings more triangular than in the 

 type, and other Australian specimens vary considerably in the tint 



