•il PAPILIONID.E. PIERIN.E. — DELIAS. 



wiii^s wliitt', with the outer fourth from tlie apex to the inner margin black, 

 the lilaek area l)eing widest in the middle, and its inner edge irregular and 

 irrorated with grey scales. 



Undehside. Anterior wings white, with the black area more extended 

 than on the upperside, and invading the ujiper [)art of the cell, where, towards 

 the l)ase, it is irrorated with white and tinged with yellow ; the upper disco- 

 cellular ncrvule is l)lack ; the rows of white spots in the apical black area are 

 much larger and more distinct than on the ui)i)crside and six in number, with a 

 narrow marginal whitish streak between the two lowest median ncrvules. 

 Posterior wings with the basal two-thirds yellow, shading into white towards 

 the apex ; the outer third black, with a submarginal row of six greyish-white 

 bars, angulatcd externally in the middle. 



Head and thorax black, clothed with long white hairs ; abdomen white. 



Hab. New Georgia, Solomon Islands (Captains Cayley Webster and 



Cotton). 



lu tho Collection of Mr. H. Grose Smith. 



Belongs to the group of Delias Isse, Cram. Deseribed from a single specimen. 



XX.— DELIAS SACHA. i . Fios. 5, 6. 



Delias Sacha, H. Grose Smith, " Novitates Zoologies," II., p. 75 (1875). 



Exp. 2| inches. 



J/, ill'. Upperside. Both wings white. Anterior wings with a Idack apical 

 patch, in which is situate a row of six white spots smaller than in 1). Furili-ti, 

 Voll., the inner side of the black patch towards the costa being dusted with 

 white scales and becoming obsole1,e. Posterior wings with an outer-marginal 

 black Ijand, irrorated with white scales on its inner edge ; between the veins 

 on tlie margin is a row of rather indistinct sul)triangular white spots dusted 

 with black scales, the lowest being between the two lowest median nervules, 

 and almost obsolete. 



Underside. Anterior wings resemble D. PircUfu, but the white spots in 

 the apical black area are more clearly defined, and are outwardly conical. 

 Posterior wings lemon-yellow, bordered liy a broad black band, but narrower and 

 straiuhter than in D. Pircilea, in which is situate, nearer the margin than in 

 that species, a row of subtriangular orange spots with their apices pointing 



