AND ON SHORE OF LAKE VICTORIA. 2'J7 



I may add that there is a species of Tsetse-tly found along 

 the wooded portion of the lake shore here at Entebbe. A speci- 

 men 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 blood-sucker 

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

 my return from Kibwezi in April, 1892, at a time when the whole 

 of the "fly-belt" was parched and dried up — there being no water 

 between Msogoleni and Tsavo River, a distance of 50 miles, and 

 consequently no game of any kind — the Tsetse was more plentiful 

 than at any other time, before or since, that 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 suflfered 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 upon the blood of a very infrequent passer-by or a 

 stray dik-dik. 



I have, etc., 



(Signed) F. J. Jackson. 



APPENDIX D. 



Native Methods of Protecting Animals prom the Attacks 

 OP Tsetse-flies. Native Prophylactics against and 

 Remedies for Tsetse-ply Disease. Native Names for 

 Tsetse-Flies. 



Native Methods of The practice of crossing Fly-belts at night 



Protecting Animals with a view to the protection of oxen and 



from the Attacks of horses, has been referred to in Chapter I, 



Tsetse-flies. where it was shown not to be an infallible 



safeguard although usually free from any great risk. According 



to Livingstone [21] and Kirk [28], natives sometimes take 



advantage of the remarkable dislike evinced by the Tsetse to 



* As I have not seen this specimen, the particular species of Tsetse-fly 

 found at Entebbe, on Lake Victoria, must be a matter of conjecture. 

 — E. E. A. 



