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 13° above Kharttim 
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, zanthevarne. 
This butterfly was taken by Petherick on the White 
Nile (citreus and zanthevarne). 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 Aurivillius to “ var. hib. citreus, Butl.” ‘ 
A solitary male was taken by myself in 1909 at Gebel Kn 
[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 
Sadan Mrs. Waterfield looks upon it as the commonest 
butterfly. 
It occurs in Abyssinia, Somaliland (philippsi, Butler), the 
Victoria Nyanza district, British Hast Africa, German 
Kast 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.” 
