404 Mr. G. Talbot on new 



in the Joicey Collection, taken by J. 0. Kershaw in 1909 

 and bearing the locality " Amboina." 



UpperAde. — Fore wing black. An apical row of four 

 white spots in cellules 4-7, the two middle spots larger than 

 the others ; basal area extending to vein 3 powdered with 

 grey-white mixed with yellow. Hind wing black. Basal 

 area to end of cell and between costa and a short distance 

 from anal angle grey-white, whiter on inner margin. 



Underside. — Fore wing black. An apical row of four 

 yellow spots with an additional spot in base of cellule 7, 

 outer edge of this band tinged with white ; basal half of cell 

 powdered with yellow, and some grey scaling along base of 

 costa ; white scaling along inner margin. Hind wing as in 

 $ , postdiscal black band broader than in $ but varying in 

 width ; black marginal border a little broader. 



Length of fore wing 29-34 mm. 



Described from a series obtained in Central Ceram, Mount 

 Manusela, 3000-6000 feet, mostly at 3000 feet, October and 

 November. 



Delias dun's, Hew. 



Delias duris, Hew. Exot. Butt., 1. Pieris, no. 34, pi. v. fig. 34 (1861) 

 (Ceram). 



This species is subject to some variation, and the so-called 

 seasonable forms referred to by Fruhstorfer in Seitz, Macrolep. 

 ix. p. 128, are merely variations. The extreme form with 

 the red discal area extended to join the submarginal red band 

 is alone worthy of the name aleria, Fruh., as an aberration. 

 There is no marked wet and dry season on the Mansuela 

 Range, where this species was obtained in some number 

 during the period of most rain — October and November. 



Delias stresemanni, Roths. 



Delias stresemanni, Eoths. Nov. Zool. xxii. p. 110 (1915) (Central 

 Ceram). 



This species is subject to much variation. We have only 

 one $ specimen, which agrees with the description of the 

 single $ in the Tring Museum in having a " broad cloud- 

 like whitish postmedian band," and even this is indistinct. 

 There is in most of our specimens some yellow scaling on the 

 inner margin of hind wing below. On the upperside the 

 black margins vary slightly in width. 



The ? exhibits most variation. We have no specimen in 

 which the spots on the fore wing are entirely white, and at 

 least the costal spot is yellow. 



