m] OLD-WORLD MIMICS 29 



is common to Africa and to Indo-Malaya. Common also 

 to the two regions are the mimics, Argynnis hyperbius 

 and Hypolimnas misippus (cf. PI. IV, figs. 3 and 7). 

 The case of the last named is peculiarly interesting 

 because it presents well-marked varieties which can 

 be paralleled by similar ones in D. chrysippus. In 

 addition to the typical form with the dark tipped 

 fore wing relieved by a white bar there is in each species 

 a form uniformly brown, lacking both the dark tip and 

 the white bar of the fore wing. There is also another 

 form in the two species in which the hind wing is 

 almost white instead of the usual brown shade. In 

 both species, moreover, the white hind wing may be 

 associated either with the uniformly brown fore wing 

 or with the typical form. There is also another common 

 African butterfly, A cram encedon, in which these different 

 patterns are closely paralleled ( cf . PI. IX ). Several other 

 species of butterflies and a few diurnal moths bear a 

 more or less close resemblance to D. chrysippus. 



Danaine butterflies with the dark interlacing fines 

 on a pale greenish-blue ground, so characteristic of the 

 Oriental region, are represented in Africa by the species 

 Danais petiverana (PI. VI, fig. 1) ranging across the 

 continent from Sierra Leone to British East Africa. 

 A common Papilio, P. leonidas (PL VI, fig. 2) has a 

 similar extensive range, and has been regarded as a 

 mimic of the Danaine. In S. Africa P. leonidas is 

 represented by the variety brasidas in which the white 

 spots are reduced and the blue-green ground is lacking. 

 Brasidas bears a strong resemblance to the tropical 



