Reports to the I^^oreigii OJfiee. 155 



I umy add tbut there is a Hpecies of TsetsL-fly found along the woodc-«l 

 portion of the hike shore here ut Hiitehhe. 



A sjieeimeu of this fiy I u'ave to Sir Harry .Inlmston, and I l>elieve he 

 sent it home. It is jilt-ntifid in tlie hotunit-al j^'unlcns. In these j^ardeiis, 

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

 nocturnal beiusts, such its the ichmumons, ct<'., and an occasional 

 hij>|>opotainus, there are no mammals, and if, as is supposed, the fly \& 

 U' <essivrily dependent on the ])resence of suitable mauuuals on which to 

 feeti, the blood of these animals, antl occasionally man, must necessjirily 

 form its food supj>ly. In conclusion I may aild that I have ventured to 

 hold the opinion that th'- Tsetse is like the nioSijuiio, only a bloodsucker 

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

 to Kibwe/i ill April, ix'.fJ, at a time when the whole of the Jly "belt" was 

 pirched and dried up — there being no water between .Msongtdeui 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 {wLSsed throuirh that area. 



Between Mtoto-Ndai ami Kinani I caught on my own [)erson thirteen 

 of these tlies, and my half-naked porters suffered even more than I «lid 

 from their bites. 



1 c;iu, therefore, not readily iKJieve that all these flies could exist in 

 such a dried-up and at that time intensely hot locality if S'dely dej)endent 

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



I Ijave, etc., 



(Signed) F. J. Jackson. 



2. WIHTK AXTS OK TKILMITKS IX TIIK Sl'DAX. 



CnilllKSI'oNDFACK ANh KHroKT riiEI'AKED FOK Tlli: 



KoKHKJX OFFICE. 



SVD^N GoVEUXMKNT, 



Civil Secretary's Oflico, Cairo, 



"ah Au*;u4t, I'JOl. 



To TIIK Bkitisii \ukst and C'oxsi l-(Jk.nkral, Cairt». 



Sir, — We an- much tnmbk-*! in the Sudan by White .\nt/*. They 

 de«troy not only winKhn Ulegrajih poles, l»oxes, furniture, Limljur, etc., 

 but in the Kharioum district green and growing i)lant«. 



This is in our exiMriencc an unustml prmitlure for the Stidanese White 

 Ants (who ! ' ((infill.- th< niselveH to wood), and sln>ws that there must 

 l)c several \.... .. > of the pst. This {mriieular form of Wliite .\ni has 



its neNt about the size of a small melon, 1 or !t feet under ground ; but it 

 is very dithcult to extirpate biiu coiupIcU.Iy without digging up and 

 spoiling a great detU of ground. 



