( Ixviii ) 



Passing across to Uganda, whilst the male remained the same, 

 the female became established in the form hitherto known as 

 atirivillii, and was a very perfect mimic of Planema jwggei, 

 Dew., one of the commonest species of that genus at Entebbe. 

 It was very remarkable that in aurivillii there was a complete 

 development of the brown patch at the base of the hind-wing 

 underside. This brown patch is especially noticeable in many 

 species of Planema and also in their mimics. The case was 

 further complicated by the fact that in West Africa the male 

 alcio2)e formed the model of the female Mimacraea, ftdvaria, 

 Auriv., whilst the male of this Lycaenid accurately resembled 

 a male rianema allied to that which formed the model of the 

 female ale lope. All the species involved were exhibited, the 

 female Lycaenid being represented by an imitation specimen 

 made of paper and copied from Aurivillius's figure, there being 

 no example of the female in this country. The mimetic 

 relations might be illustrated diagrammatically in the follow- 

 ing manner, the arrows expressing the connection of model 

 and mimic, and pointing from the latter to the former. 



West Africa. 



Mimacraea 

 fiblvaria ? 



Acraea 

 alciope i 



Plaiiema spp. S 



Mimacraea 



fidvaria 6 



Acraea 

 alcioim 9 



East Africa. 



Planema 

 poggei 6 9 



Acraea 



alciope ? 

 {aurivillii) 



Acraea 

 alciope 6 



One result of the investigation was that the alicia of Smith 

 and Kirby could no longer stand, firstly because it was an 

 Acraea and not a Planema, secondly because the name was 

 preoccupied, thirdly because the alleged male was a female, 

 and fourthly because the female was the same as aurivillii, 

 and aurivillii was alciope. The latter might be retained as a 

 varietal name for the East African female. 



