54 



of the ver)' large spot on the under-side of the hind-wings. At the said 

 place of the hind- wings there have still remained pretty large spots in which 

 the 8-shaped figure with pearly centre shows off very clearly ; from the large 

 spot on the under-side of the fore-wings only a much smaller, almost round 

 spot is still seen. Continent of India (Cram.), Batavia, Java, Madura, Bawean, 

 Borneo, Manouwoko island, Flores, Wetter, Timor, K6 islands, (PI. Ill fig. 6 /). 



?. A still somewhat further advanced stage in the process of colour 

 evolution. The upper-side paling from sulphur-yellow into white, the under-side 

 from dark yellow to pale brownish yellow. The large spots on that side have 

 quite disappeared ; the rose-colour along the margins near the apex of the 

 fore-wings however, and several spots of the same colour have remained. The 

 round spot on the under-side of the fore-wings has also turned paler and gets 

 smaller and smaller; such is also the case with the 8-shaped spot with pearly 

 centre on the under-side of the hind-wings. At last it is reduced to one circle 

 without pearly centre. Malacca, (Distant), Java, Borneo, Sumatra, Engano, 

 Nias, Great Sangir, Celebes, Salaiara, Timor, Flores, Soumbawa, AUor, Wetter, 

 Ceram, Banda, Ke islands, New Guinea. (PI. Ill fig. bk). 



I. Upper-side pure white, the centre part sometimes more, sometimes less 

 extended sulphur-yellow, thus giving back the colour-type of the cf- The black 

 dot on the fore-wings sometimes quite or nearly quite disappeared; around all 

 the margins a stronger or feebler black border, the beginning of the increase 

 of the black, mentioned in group L Under-side yellowish, sometimes a clear 

 sulphur-yellow or sometimes a little ochraceous-white, resembling in colour that 

 of the cf »■ Generally no more relics of the spots, and neither of the 8-shaped 

 figure. Malacca (distant), Batavia, East-Java, Madura, Sumatra, Nias, Rio- 

 Lingga archipelago, Salaiara, Ternate, Wetter, Timor. (PI. IV, fig. i a, 6.) At 

 Batavia at least this $ form, which is the most progressive among them, is also 

 the most common, as the least progressive and thus the oldest S and e forms, 

 are also the least frequent there. 



9. Increase of the black on the upper-side; parallel to the broad border 

 around all the wings, already present in the former group, another stripe of 

 black spots also arises. The black line along the costa, mentioned in the 

 Introduction becomes more strongly developed and bends in the form of a 

 hook towards the above-mentioned black spot near the outward extremity of 

 the discoidal cell and at last is connected with it. Sometimes the black has 



