the Butterflies of the White Nile. 45 



Aurivillius (3. p. 59) confines this species to Nubia, but the 

 British Museum has two males and a female from Muscat, 

 South-east Arabia. 



The range of this species, though decidedly restricted, 

 is wider than that of the last, reaching the Red Sea 

 Littoral on the north-east, and going 11° above Khartum 

 on the White Nile towards the south. 



I have a fine large female which differs from the example 

 figured in that the transverse dark bar on the fore- wing 

 is reduced to two spots, whereas the marginal black spots 

 on the hind-wing are much more pronounced. 



61. Teracolus evarne, Klug. 



The type came from Ambukol. 



Butler calls the dry-season form citreus, and the geo- 

 graphical race occurring in Upper Egypt, the White Nile 

 and Abyssinia, xanthevarne. 



This butterfly was taken by Petherick on the White 

 Nile {citreus and xanthevarne). Dunn took it on the 

 Bahr al-Zarafa. It was found in some numbers by Loat 

 at Mongalla and Gondokoro. Selous took two females, 

 one opposite Renk, the other at Tawfikiya. Two males 

 and six females brought home by the Swedish expedition 

 from Renk, Gebel Ahmad Agha and Kaka were referred 

 by Aurivilhus to " var. hib. citreus, Butl." 



A solitary male was taken by myself in 1909 at Gebel En 

 [Lat. 12° 37' N.], but in 1912 I brought back twenty-eight 

 specimens from various places on the White Nile, extending 

 from Gebel Ahmad Agha in Lat. 11° 0' N. right up to 

 Gondokoro. It was by far the commonest at Shambi 

 [Lat. 7° 0' N.]. As it is not a very attractive insect on 

 the wing the number of specimens brought home is not 

 an exact measure of its abundance, for one's attention is 

 apt to be diverted by more conspicuous things. 



Rothschild found it common on the Atbara, but it was 

 not reported by either Cholmley or Yerbury. At Port 

 Sudan Mrs. Waterfield looks upon it as the commonest 

 butterfly. 



It occurs in Abyssinia, Somahland {philippsi, Butler), the 

 Victoria Nyanza district, British East Africa, German 

 East Africa and Senegal. 



I detected a scent in five males ; it was distinct and sweet 

 in character, in one case compared to Freesia, but in 

 another described as " somewhat medicinal." 



