Reports to the Foreign Office. 1 55 
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 bloodsucker 
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 suffered 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. 
COEEESPONDENCE AND EEPOET PEEPAEED FOE THE 
FOEEIGN OFFICE. 
Sudan Govebnment, 
Civil Secretary’s Office, Cairo, 
Itli August , 1901. 
To the British Agent 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 difficult to extirpate him completely without digging up and 
spoiling a great deal of ground. 
