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localities are inter se, though some individuals have a slightly different aspect ou 

 account of the larijer postdisco-suhmarginal patches of the hiudwiug. Dr. Butler's 

 repedtus from Borneo is based upon an individual in which the discal and median 

 interspaces of the forewing above are whitish buff in the costal region ; transitions 

 from the ordinary Bornean examples to this form, which agrees with certain 

 examples of Ch. pohjxena hierax S-i.jaUnder, are not rare, bnt examples with the 

 discal band so clearly indicated as in the t>/pe specimen of rcpetitus are rare, there 

 being only one in the Tring Museum among the hundred cJc? selected from large 

 quantities. This specimen came from Bukan, N. Borneo, and was collected (like 

 the type I) by the late Mr. A. Everett, in July 1891. On the whole the S S of 

 repetitus have tlie black admarginal lunnles of the hindwing ahore better marked 

 than the individuals of the continental t?-f corax, and the submedian and median 



bars of the underside are nearly always conspicuously edged with white. 



Upperside : black area of forewing variable in width, often reaching cell along SC*^, 

 postdiscal, interstitial, tawny spots variable in number, discal bars BP— SM- often 

 absent, sometimes completely merged together with the postdisco-marginal band : 

 postdisco-submarginal jiatches of hindwing either as in 6-t corax, the postdiscal 

 portions of patches R' — SM- absent or obsolete, or as in c?-f. hierax, the white 

 dots standing in the centre of the rather large and continuous, or subcontinuous, 

 jiatches, with all intergradations from the same places : in a few examples some of 

 the postdisco-submarginal spots join the black admarginal lunules. The underside 

 varies much in the general tint ; russet specimens are the commonest, but there are 

 also olive buff and bright cinnamon rufous ones. 



? . Upperside : basal area varying from bright tawny ochraceous to tawny 

 cinnamon ; band of forewing pale ochreous buff, postdiscal interstices R' — SM- 

 the same colour, discal bars M^ — SM- often feebly marked, median bars SC^' — M- 

 vestigial or even absent, bar R^— M', however, sometimes heavier; or the discal 

 band is white down to M- or (SM'), the postdiscal interstitial spots are smaller, 

 partly absent, and tlie median bars R^ — M- are heavier ; white submarginal dots 

 R' — SM- of hindwing always at proximal side of the black patches, the jiostdiscal 

 portions of these patches being obsolete ; Sumatran individuals occasionally with 

 two tails like the ? of CA. pohjxena haya from Java. 



Ilab. Malay Peninsula, Sumatra, Banta, Billiton, Natuna Islands, Borneo. In 

 the Tring Museum lOn S$,>^ ? ¥. 



In Sumatra the insect is found, according to Dr. Martin "from the sea (Paya 

 Bakong) to Bekantschan. It occurs in every forest, where it is especially partial to 

 faeces and moist spots. It is a very variable insect as regards the extent of the 

 black colouration on the npi)erside of the forewing, and the colouring of both wings 

 on the underside." Dr. Hagen calls it the most common of all the tawny species of 

 Charaxes. In Borneo it must also be common, judging from the number of speci- 

 mens that are found in collections sent from there. Amongst the specimens which 

 Dr. Martin's collectors brought from the Battak Mountains are some in which 

 the tawny postdiscal spots R'— SM- of the forewing above are all developed, the 

 jiostdisco-submarginal patches rather longer than in ordinary individuals, and 

 second tail, more obviously indicated ; it is possible that these specimens together 

 with the two-tailed ? recorded by Dr. Martin belong to a mountain race, the name 

 of which would eventually be ajax. 



