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over so large an area of the rest of Africa, I confidently 
anticipate that we shall receive from Abyssinia intermediate 
gradations between the three known forms of the female P. 
antinorti ; and as the dominant model, Amauzris echeria, 18 
represented in Abyssinia by the abundant and very closely 
allied A. steckeri, I should not be surprised to see another 
mimetic female of P. antinorii closely resembling the typical 
P. cenea. More than this, we may not unreasonably hope to 
discover, at some point in the wide territories between 
Abyssinia and Zanzibar, females of the Merope-group exhibit- 
ing stages intermediate between the long-tailed mimetic 
females of P. antinorii and the entirely tail-less ones of 
P. cenea, 
While dealing with this case, I would add that, until 
recently, of all the various tail-less continental females of 
this group known to me, the form dionysos—a rare phase 
of the West-African P. merope—was the least modified as 
compared with the male,* for it possesses merely a trace of 
the wide black bar that in two other forms divides the pale 
ground-colour into perfectly separate subapical and inner- 
marginal spaces in the forewings, and the hindwings are 
ochre-yellow with a narrow black border.+ Professor Poulton 
has, however, kindly shown me, in the Hope Collection of the 
Oxford University Museum, a much closer approximation to 
the masculine coloration in an extraordinary example of the 
female P. cenea from Zanzibar. In this female the transverse 
trace of black in the forewings is even fainter than in the 
dionysos form, and the colour of the wide pale spaces and the 
hindmarginal spots in all the wings is almost exactly of the 
pale creamy-yellowish tint of the male P. cenea; and on the 
underside, while the pale-yellowish of the forewings is better 
divided by blackish than on the upperside, the colouring of 
the hindwings corresponds much more nearly to that of the 
male than in any other female I have seen—the characteristic 
break in the submarginal brownish band being moreover very 
* See Trans. Ent. Soc. Lond., 1874, p. 178. 
+ Hewitson (Exot. Butt., iv., Papilio, xii., fig. 39) delineates an example in 
many respects intermediate between dionysos and hippocoon, but rather 
closer to the latter form as regards the forewings. 
