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of the wings this often occursion the upper-side, and still oftener on the under- 

 side of the fore-wings, near the apex for instance, as well as on the under-side 

 of the hind-wings near the basis. But also in other places such relics of colour 

 may sometimes be found. 



As to the colour-evolution in T. Belisama, it follows in each sex an 

 independent course. Though it may happen that, in this respect, in both 

 sexes the same thing occurs — this course being of the same nature in both — it 

 is inaccurate to consider such specimens as the two sexes of a certain form ; 

 they are only specimens of a different sex which have reached a nearly equal 

 evolutionary stage. Female butterflies of the above-mentioned male evolutional 

 form Belisar occur indeed just as little as male ones of the old form C axilla 

 of Callidryas Pomona F. which will be treated of later on. What have been 

 taken as such in the above mentioned erroneous idea, are but 9 which still 

 belong to the least advanced and for this reason most coloured ones, but 

 which may not be separated from the ordinary form Belisama Belisama; in 

 this case there is by no means such a great difference of colour as to have 

 caused some cT to get a different name. 



The matter is exactly the same as the one which shows itself also in the 

 form Catilla just mentioned, with this difference, however, that in these the 

 older stage of colour-evolution has remained in the female sex and as to 

 Belisar in the male sex. 



Thus among the cf the oldest stage of coloration still existing, is that one 

 in which the upper-side is still quite orange with black margins, and which 

 for this reason has been distinguished as Belisar or Aurantia. In the Leyden 

 museum there is, it is true, a cf whose colour is still much darker, namely 

 rusty (ferruginous). So this specimen may represent a still older stage of 

 colour; but it is the only one known to me, and not only is the district where 

 it was caught in Java unknown, but it is an old specimen and not at all in a 

 fresh condition ; yet for the present I am not convinced that it has been subjected 

 to a change of coloration by some chemical influence. For indeed, it is not 

 only the upper-side that has the colour I have already mentioned, but also 

 the under-side of the hind-wings is much more reddish than the darkest orange- 

 yellow which is seen in other specimens. But now I possess a specimen that 

 was collected in Java by Fruhstorfer only a few years ago, the upper-side 

 of which is white with a little yellow, but the colour of the under-side of 

 the hind- wings of which corresponds with the reddish orange mentioned 

 by Staudinger of his form Erubescens and, evidently forms a transition 

 from the orange that occurs in the more common specimens on the same 

 under-side, to that which occurs there in the above-mentioned specimen in the 



