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greater part of the African continent south of the Sahara. The 

 male is a white butterfly not unlike our large cabbage white. It 

 has, like that insect, a black apex to the forewing, with a gradually 

 narrowing prolongation along the outer border. The general 

 ground-colour is white, often with a tinge of pale bluish-green. 

 These males are all very much alike, though slight differences may 

 be seen in the dark apical patch, according to the locality from 

 which the specimen comes. But when we turn to the female, we 

 find at least eight different kinds, each with a pattern on the upper 

 surface that makes it easily distinguishable from all the rest. 

 And each of these different forms bears a more or less close 

 resemblance to another Pierine butterfly ; four Pierine genera being 

 represented among the models. There is first of all the white, 

 black- bordered form which may be considered typical. This is like 

 a member of the genus Belenois, B. theuszi. The addition oi an 

 orange basal flush to this form with the heavy dark border gives us 

 a form which recalls at once the male of Mylothris ruppellii, a 

 conspicuous member of a Avell-known distasteful genus. In 

 another kind of the female, the black border is somewhat less 

 pronounced, and in place of the brilliant orange flush on the upper 

 surface, a pale pinkish tinge just shows through on the upper 

 surface at the base of the forewings. This brings it near in aspect 

 to the male of another Mylothris, viz., the well-known and widely- 

 distributed Mi/hitJiris aiiathina. The female Leuceronia art/ia may 

 also have a border of conspicuous and isolated dark spots, while the 

 basal flush is very large in extent, and vermilion instead of orange. 

 In this case the resemblance is still to Mylothris riippellii, but to the 

 female rather than to the male. This last, which is the form of 

 the female most often met with in Natal, is often accounted, 

 together with its male, as a separate species, under the name of L. 

 varia, Trim. There is also a form of the female which is like the 

 typical form, except that the ground-colour is bright yellow instead 

 of white. This resembles the West-African Belenois ianthe. The 

 addition, in some specimens of this last, of a basal orange flush, gives 

 the appearance of a yellow form of Mylothris riippellii known as f- 

 erlauyeri. The form with slightly-marked spotty border and orange 

 basal flush may have the hindwings yellowish, in which case it falls 

 intoline with the upperside of the female of Phrissiira pJicebe, a,n African 

 member of the group which includes the splendid sharp-winged 

 Appias or Tachyris of India and the Malayan Archipelago, and also 

 with the underside of a large colour-combination of white butterflies, 

 consisting of many genera, the central type of which is probably 

 again the widely-distributed form Mylothris ayathina. From this 

 variety of the female the basal flush may be omitted ; it then 

 resembles certain females of Pinacopteryx piyea. Lastly, there are 

 females of Leuceronia aryia with brown forewings and white 

 hindwings. These are strikingly similar to the females of 

 Mylothris spica. 



