the Butterflies of the White Nile. 47 



65. Catopsilia florella, Fabricius. 



Dunn took this on the Bahr al-Zarafa. The Swedes 

 took a sohtary male to the south of Kaka. 



It was common during my stay at Khartum in 1909, 

 less so in 1912. Though I did not myself take this 

 butterfly on the White Nile above Khartum, it is very 

 possible that I may have seen it. 



Rothschild mentions it as common romid Khartum, 

 and also as seen at Shendi. Cholmley took several north 

 of Suakin. Mrs. Waterfield found .it common enough at 

 Port Sudan, though I did not myself see it there. Col. 

 Yerbury took it freely at Aden. Peel found it abundant 

 in Somaliland, and it extends even to Sokotra, where 

 Bennett noted of it : " Flight strong," a fact that no one 

 acquainted with the insect will dispute. 



It ranges over Arabia, the whole of Africa south of the 

 Sahara, and occurs in Madagascar and the Mascarenes. 



At Khartum I repeatedly saw this butterfly settle upon 

 Cassia obovata, Callad., a dwarf shrub with yellow flowers 

 that grows commonly on the sand in the outskirts of the 

 city. Col. Nurse says that its larva feeds upon species 

 of Cassia. 



The strong luscious sweet scent of the males, noticed 

 by me in South Africa, was confirmed. 



66. Terias senegalensis, Boisduval. 



Butler considered his chalcomiaeta to be an insular race 

 of this species.* 



Found by Dunn on the Bahr al-Zarafa. Loat took three 

 males and a female at Gondokoro ; the males were " dry," 

 the female " intermediate." 



In 1912 I took a single female, of the dry-season form, 

 and saw another specimen, at Masran Island [Lat. 12° 45' 

 N.]. Perhaps that may be taken as about the extreme 

 northern limit of this butterfly, which is found throughout 

 Africa south of the Sahara, in Madagascar, and in Southern 

 Arabia. 



Yerbury took the form chalcomiaeta at Aden, 



67. Terias brigitta, Cramer. 



Taken by Dunn on the Bahr al-Zarafa. Loat took one 

 of each sex at Gondokoro in January 1902 ; the male was 



* Ann. Mag. Nat. Hist., Ser. 7, vol. i (1898), p. 67. 



