30 Dr. G. B. Longstaff on 
South African “‘ White,” north of Lat. 12° 37’ N., 2. e. three 
degrees above Khartiim. 
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 Longstaff, 16. 
p. 512.) 
38. Belenois severina, Cramer. 
Both Aurivillius 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.], Daléb, Hillet al-Nuwér, Shambi, Kanisa, 
Tombé [Lat. 5° 43’ N.], and Rejéf. The same year I took 
the form boguensis at Melit [Lat. 10° 27], Daléb, 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 leuwcogyne), 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 Kharttim, and took 
three at Sdba. It was common at Ad-Duwém and I took 
a solitary male at Tawila. In 1912 I took several in the 
Khartim district, including Kaderfi and Kerreri. On the 
White Nile it occurred at Tawila, Renk, Meshra Zarafa, 
Kaka (common), Meltit (common), Lil, Tawfikiyaé, Daléb 
(common, but all the specimens taken were remarkably 
small), lower Bahr al-Zarafa (common), Shambi, Kanisa, 
