Reports to the Foreign Office. 155 



I may add that there is a species of Tsetse-fly found along the wooded 

 portion of the lake shore here at Entebbe. 



A specimen of this fly I gave to Sir Harry Johnston, and I believe he 

 sent it home. It is plentiful in the botanical gardens. In these gardens, 

 with the exception of a few monkeys and squirrels, and certain small 

 nocturnal beasts, such as the ichneumons, etc., and an occasional 

 hippopotamus, there are no mammals, and if, as is supposed, the fly is 

 necessarily dependent on the presence of suitable mammals on which to 

 feed, the blood of these animals, and occasionally man, must necessarily 

 form its food supply. In conclusion I may add that I have ventured to 

 hold the opinion that the Tsetse is like the mosquito, only a bloodsuckei- 

 by predilection, and, in support of this view, I may state that on my return 

 to Kibwezi in April, 1892, at a time when the whole of the fly "belt" was 

 parched and dried up — there being no water between Msongoleni and the 

 Tsavo river, a distance of fifty miles ; and consequently there was no game 

 of any kind — the Tsetse was more plentiful than at any other time, before 

 or since, I have passed through that area. 



Between Mtoto-Ndai and Kinani I caught on my own person thirteen 

 of these flies, and my half-naked porters su-ffered even more than I did 

 from their bites. 



I can, therefore, not readily believe that all these flies could exist in 

 such a dried-up and at that time intensely hot locality if solely dependent 

 on the blood of a very infrequent passer-by or a stray dik-dik, 



I have, etc., 



(Signed) F, J. Jackson'. 



2. WHITE ANTS OE TEEMITES IN THE SUDAN. 



CORRESPONDENCE AND REPORT PREPARED FOR THE 

 FOREIGN OFFICE. 



Sudan Government, 



Civil Secretary's Office, Cairo, 



1th August, I'JOl. 



To TiiK Beitish Ageijt and Consul-General, Cairo. 



Sir, — We are much troubled in the Sudan by White Ants. They 

 destroy not only wooden telegraph poles, boxes, furniture, timber, etc., 

 but in the Khartoum district green and growing plants. 



This is in our experience an unusual procedure for the Sudanese White 

 Ants (who mostly confine themselves to wood), and shows that there must 

 be several varieties of the pest. This particular form of White Ant has 

 its nest about the size of a small melon, 4 or 5 feet under ground ; but it 

 is very diiflcult to extirpate him completely without digging up and 

 spoiling a great deal of ground. 



