92 Dr. G. D. Hale Carpenter on 



On the other hand, a few of the eastern form of the model, 

 form paragea, were taken at Kakindu. 



So here is an example of eastern (Planem/i) and 

 western {Papilio) forms commingling on the western side 

 of the great lake, while the form peculiaris Neave, of the 

 Papilio, corresponding to the eastern model, did not 

 occur. 



Combination IV. — The form dorotlieae of Acraea jodutta 

 mimics Planema tellus, the model of this group. Another 

 form is the black-and-white jodutta, belonging to Com- 

 bination II. 



A very interesting form has the subapical white bar on 

 the fore-wing, but the other areas are of the rich orange 

 of dorotheae ; this corresponds to the more southern e^sehria, 

 one of wliich was taken at Kakindu on 29.4.15. There 

 is a very interesting similar variety of Pseudacrciea 

 eurytus transitional from terra, to Jiobleyi ; the likeness 

 to the Acraea is remarkable, and the likeness of both 

 to Danais chrysippiis. A single ^ of Acraea esehria was 

 taken at Kakindu, of the same type as the last-mentioned 

 form of jodutta. According to Eltringham this is 

 "essentially a S. African insect" ("African Mimetic 

 Butterflies," p. 81) ; it is considered by him to be distinct 

 from jodutta although closely allied. 



Acraea althoffi., of whose non-mimetic male a single one 

 was taken at Kakindu, is of much interest since it has 

 two forms of female which occur at Entebbe, but not 

 in any locality where I have collected. These forms are 

 secondary mimics in Combinations II and IV through the 

 jodutta and dorotheae forms of A. jodutta, which are their 

 primary models (Poulton, Report of T'" Congres Inter- 

 national d'Entomologie, 1911, pp. 504-506). 



Transitional fornift of Pseudacraea eurytus. — In the 

 Bugalla collection of 1912-13 there were 85 (^, 71 $ speci- 

 mens showing a transition between the several named 

 forms, out of a total of 356. In the collection from Kome, 

 and the adjacent small islands lying off its western end, 

 made in 1914, there were only 3 9 transitional forms out 

 of a total of 77. 



At Kakindu there were no transitional forms out of 13, 

 which is not remarkable, seeing that all save one were of 

 the form terra, corresponding to the predominant model. 

 In 1918-19, however, on Kome island there were 22 tran- 

 sitionals out of a total of 52 Pseudacraea. 



