30 Dr. G. B. LongstafE on 



South African " White," north of Lat. 12° 37' N., i. e. three 

 degrees above Khartum. 



This species is found in Abyssinia and throughout South 

 and East Africa, and in one or two districts in West Africa. 



A female had a faint scent. (Compare LongstafE, 16. 

 p. 512.) 



38. Belenois severina, Cramer. 



Both AurivilhiLS and Dixey regard leucogyne, Butler, and 

 boguensis, Felder, as races of severina, and transitional 

 forms are common. 



Dunn found typical specimens as well as boguensis on 

 the Bahr al-Zarafa. Loat took both forms at Mongalla 

 [Lat. 5° 12' N.] and the typical form at Gondokoro. 



In 1912 I met with the typical form at Gebel Ahmed Agha 

 [Lat. 11° 0' N.], Duleb, Hillet al-Nuwer, Shambi, Kanisa, 

 Tombe [Lat. 5° 43' N.], and Rejaf. The same year I took 

 the form boguensis at Melut [Lat. 10° 27'], Diil'eh, Shambi 

 and Kanisa [Lat. 6° 50' N.]. 



These records give a very similar distribution for typical 

 severina and for the f. boguensis; moreover the latter is 

 common in the Victoria Nyanza country, and Selous took 

 it on the Bahr al-Ghazal. 



B. severina is the " Common White " of South Africa, 

 covering the whole continent south of the Sahara, passing 

 over into Madagascar, while Col, Yerbury records it from 

 Aden (under the name of leucogyne), but it does not enter 

 the Oriental province. 



39. Belenois mesentina, Cramer (= lordaca, Walker). 



Taken by Dunn on the Bahr al-Zarafa. It was found 

 commonly by Loat at Kaka [Lat. 10° 40' N.], Mongalla 

 [Lat. 5° 12' N.] and Gondokoro. The Swedes took it at 

 Mohadan Zarafa, and at Kaka; the specimens, more 

 especially the males, being very small. 



In 1909 I found it in abundance at Khartum, and took 

 three at Soba. It was common at Ad-Duwem and I took 

 a solitary male at Tawila. In 1912 I took several in the 

 Khartum district, including Kaderu and Kerreri. On the 

 White Nile it occurred at Tawila, Renk, Meshra Zarafa, 

 Kaka (common), Melut (common), Lul, Tawfikiya, Duleb 

 (common, but all the specimens taken were remarkably 

 small), lower Bahr al-Zarafa (common), Shambi, Kanisa, 



