( Ixviii ) • 



e. N.E. shore 0/ Victoria Nyanza. 

 Collected by C. A. Wiggins and A. Vincent near Kisumu: 



3770 feet. 



Dec. 1, 1902 . . 



Dec. 8, 1902 . . 

 March 25, 1903 . 

 March 27, 1903 . 

 Aug. 1-15, 1903 

 Oct. 15, 1903 . 



Nov. 1903 . , 



r 1 7:oolina $ (C. A, W.) 



\ 1 neanthes 3 (C A. W.) 



1 „ c?(C.A.W.) 



1 „ ? (C. A. W.) 



3 „ ^ (C. A. W.) 



3 „ c? (C. A. W.) 



1 „ 6 (A. V.) 



n " c?(A.V.) 



\ 1 zoolina $ (A. V.) 



Collected by C. A. Wiggins, at Kalachonyo, 20 miles S. of 

 Kisumu : 3800 feet. 



Dec. 19-27, 1902 1 neanthes $ 



Collected by A. H. Harrison, at Kamagombo, S. Kavirondo. 

 Jan. 24, 1903 1 neanthes ? 



In addition to the above there are 16 zoolina (4 $ 12 $ ) 

 and 2 neanthes (1 c? 1 $ ) collected in British East Africa by 

 Mr. A. H. Harrison. These are without further data of time 

 and place. 



The above series of specimens shows a reversal in the pro- 

 portions of the two forms in the northern part of the range. 

 Thus in British East Africa the more conspicuous zoolina ap- 

 pears generally to preponderate over the more cryptic neanthes, 

 while in Natal the converse relationship holds. We are 

 reminded of Precis archesia in which also the more conspicuous 

 form pelasgis is abundant in the north, while the far more 

 cryptic form, archesia, is apparently rare. 



If the two forms of Charaxes zoolina are seasonal it is 

 evident that they are by no means confined to their respective 

 periods of the year. 



Dr. Karl Jordan stated that he was not at all surprised at 

 Mr. Leigh's results ; for there were no structural differences 

 between zoolina and neanthes. He also said that other forms 

 in the same genus would doubtless require to be united in 



