53 



K6 islands, Banda, New Guinea, Wetter, Gilolo, Timor, Formosa. In Ceram, 



New Pomerania and the Salomon islands the white and the yellow are very bright. 



Under-side : ground colour very variable, more or less white with a slight 



to strong ochraceous tinge, greenish-white or sulphur-yellow. (PI. Ill fig. 6 f,/.). 



/3. The form Flava Butl. ; both sides quite or nearly quite yellow, often 

 greenish. Great Sangir, Wetter, Flores. On Salaiara, Ternate, Morty island, 

 Waisfiou and Salawati with transitions to «. In Celebes, Banda and Timor 

 together with x. (PI. Ill, fig. 6g.). 



y. (HiLARiA Cram.) upper-side like «. Under-side pale greenish white, 

 more or less shiny. With pale reddish relic patterns, as occur in many 9. 

 Among them round spots on the outward extremity of the discoidal cell ; those 

 in the hind-wings doubled, forming thus the 8 shaped figure with pearly centre. 

 Continent of India, Sumatra, Philippines, Batavia, Central Java, Madura, 

 Borneo, Manouwoko island, Flores, K6 islands. (PI. Ill fig. (iH). 



II. $ Groups. 



5. The oldest form, Catilla and Alcmeone Cram. Upper-side deep chrome- 

 yellow, paling into paler yellow and further into white. The under-side ever a 

 darker yellow. On the upper-side of the fore-wings fewer or more black spots, 

 especially a round black dot near the outward extremity of the discoidal cell. On 

 the under-side pale rose-coloured along the margins near the apex of the 

 fore-wings and further with brownish or blackish red patterns, among which a 

 larger spot on the outward extremity of the discoidal cell of the fore-wings, 

 and a very large one in the same place on the hind-wings, which is of still 

 greater extend and differs considerably in size in different specimens, and has also 

 grown paler sometimes. In some specimens of uncertain origin whose general 

 colour has already paled into white, all the red has also already disappeared 

 from this spot and only some black has remained which has also grown much 

 feebler. In this very large spot the 8-shaped one with pearly centre. When 

 the colour of the spot is very dark the pearly centre or sometimes ever a 

 part only of it is not visible. Continent of India (Bingham), Batavia, Java, Madura, 

 Sumatra, Manouwoko island. Wetter, Aru islands, Timor. (PI. Ill fig. 6/). 



f. The colour sometimes still just as deep a chrome-yellow as in S, but 

 also paling gradually into all sorts of shades and even into white, so that it 

 can be separated from the former group as a more advanced stage in the 

 evolutional process. The principal difference with 5 exists in the disappearance 



