( Ixix ) 



February I myself visited Port Sudan, and in the course of 

 a week was fortunate enough to secure eighteen males and 

 nine females. Unless I am greatly mistaken the larva should 

 turn up on the desert Caper (Capparis aphylla, Roth.). 



The purple gleam on the yellow apical spot, which a<lds so 

 much to the beauty of the butterfly, is only present in the 

 male. 



It will be observed that the specimens from the Red Sea 

 are larger and more strongly marked than those from the 

 Blue Nile. The discal spot is in most cases larger, and there 

 is more black about the apex. Moreover, the yellow nervures 

 on the under-side of the hind wings are edged with black, 

 this black edging being often visible on the upper surface. 

 Klug makes no mention of this black edging, which I am 

 disposed to associate with the heavy rainfall at Port Sudan 

 a few weeks before my visit, whereas Khartum was suffering 

 from drought. Mrs. Waterfield wrote to me when I was at 

 Khartum saying that butterflies had been much more plentiful 

 since the rain, and more strongly marked. 



Teracolus pleione is another of King's species, the types 

 coming from " Arabia Felix," whatever that geographical 

 expression may mean. 



Petherick took it on the White Nile, and Mr. W. S. L. 

 Loat in 1901 took a female at Kaka, on the same river in 

 Lat. 10° 40' N. In February last I myself took two females 

 near the same village. Colonel Yerbury found it at Aden, 

 apparently in some numbers. Colonel Swinhoe (Proc. Zool. 

 Soc, Lond., 1884, p. 436), says: "Of this very rare species 

 I have a series from Aden." However, Mrs. Waterfield looks 

 upon it as one of the commonest butterflies in the Park, at 

 Port Sudan. This park is little more than a piece of the 

 desert scrub which has been railed in. On and about certain 

 shrubs, a species of Cleome (Nat. Ord. C ajyparidaceae) , T. 

 pleione was so plentiful that I repeatedly had several in my 

 net at once. A few turned up north of the harbour near the 

 shore, but I did not meet with it in the desert to the west or 

 south of the town. It is evidently a far more local insect 

 than its near ally T. halimede, King. 



It should be noted that the females from the White Nile 



