new Species e^Planem a. 



417 



corresponds with the same sex of P. consanguinea so closely 

 that the only difference of marking which he is able to point 

 out is the slightly smaller size of the basal spots of the hind 

 wings. " In the from Uganda, however, all the yellow 

 and red-brown of the wings and body of Planema consan- 

 guinea are entirely white," a most singular statement ! He 

 means to say that the yellow and red-brown areas of P. con- 

 sanguinea are replaced by white in the female from Uganda. 

 I must express my positive conviction that this P. albicolor is 

 nothing whatever but the rare albino form which constantly 

 recurs in many species of Acrwa, and which may also exist 

 in some species of Planema. It is true, indeed, that the 

 white forms of many species of Acrwa have been described as 

 distinct, but they always occur with the typical forms as 

 either seasonal developments or simple sports; the following 

 ay be cited : 





Tawny form. 



1. Acraea Johnstoni, J 

 alciope, . 

 esebria, cj $ . 

 metaprotea, c 

 apecida, tf $ 

 vinidia, <5 $ . 

 Sganzini, c? 

 stenobaea, tf 

 caldarena, <$ 

 acara, c? $ . 

 raarniorata, c 

 percussa, <?. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 



$ 



Yellow or white form. 



Acrsea flavescens, c? . 

 carmentis, $. 



Sotea, c? $ 

 onteironis, tf $ , 

 Cabira, ^ $ . 

 tenella, <S $ . 

 lycia, c? $ . 

 caecilia, c? $ *. 

 neluska, $ only, 

 pseudolycia, $ only, 

 turna, c? $ 

 igati, c?. 



Several other species have a white as well as a tawny 

 form of female ; so that to found a new species upon a female 

 alone, which (to all intents and purposes) differs in nothing 

 but its white colouring from its nearest ally, is in the 

 highest degree venturesome. Differences of pattern are 

 alone to be relied upon in the Acrceinaij the ground-colour 

 varies enormously, the width of the black apical patch 

 varies seasonally, the number of spots on the under surface 

 varies a good deal in certain species, but the position of the 

 spots, the outlines of the bands, and width of the hind wing 

 border do not appear to be variable in Planema, or very 

 slightly so ; but in Acrcea the width of the outer border 

 varies considerably. 



* This is rather a pale than a white form, and is perhaps a climatic 

 variety. 



