358 Mr. A. R, Wallace on 



the cell ; the base of the wing is purer yellow ; on the lower 

 wings the boundary between the black and yellow portions is 

 nearer the base of the wing, the marginal red spots are smaller, 

 and there is only a small detached portion in the cell. 



Female, — Above : the basal portion of the wings is nearly pure 

 creamy-white, and there is a row of small indistinct white spots 

 along the hind margin. Beneath : the yellow colour of the base 

 of the upper wings extends downwards, changing to white at the 

 lower margin and touching the outer angle ; the lower wings are 

 almost exactly like those of T. phihjra $, except that the red 

 spots are rather broader and extend higher up near the abdominal 

 margin. Size the same as of large specimens of T. lihihjra. 



ITab.—Boma (Coll. Wall.). 



This is a beautiful local modification of T. phili/ra in an adja- 

 cent island. 



45. Thyca diiris, Hewitson. 

 Pieris duris, Hew. Ex. Butt. ii. Pieris V. f. 34, $, 

 Hab.—Ceram (Wall.). 



This rare and very distinct species comes nearest to T. 'pliUyra. 

 The female is unfortunately not known. 



46. Thyca isse, Cramer. 



Pajnlio isse, Cr. 55 E, F, 339 C, D. Pieris isse, Bd. Sp. Gen, 

 p. 4G2 ; Voll. Mon. Pier, p, 14. 



Ifafi.— Amboina, Ceram (Coll. Wall., B. M.). 



An abundant species in the forests of these two islands, 



47. Thjca echo, n. sp. (PI. VIII. fig. 3, ? .) 

 Very near T. isse, but with many points of difference, as fol- 

 lows:— 



Male. — Above, the apical border of the upper wings is much 

 wider, but does not extend so far towards the outer angle, it con- 

 tains two minute whitQ dots ; the posterior margin of the hind 

 wings is also broader and entirely black. Beneath : the disc of 

 the upper wings is white, faintly yellow-tinged at the base, the 

 spots at the apex are smaller, and the black border is quite dif- 

 ferently shaped, curving from the costa at the end of the cell to 

 about the middle of the outer margin ; the lower wings are two- 



