110 



2r)th, 1000 (/<;. L. Rhoades); C^iikala District, March 20tli, and 

 Zomba, April, lOOG {Dr. J. E. S. Old). East Africa Protectorate : 

 Mbuyimi, 1807 {G. S. Betton) ; Warkoi, 30 miles from the luoutli 

 of the R. Juba, March, 1005 {Major L. H. R. Pope-He7inessy, D.S.O.) ; 

 Malka Sala, Dawa River, December 15th, 1008 {Dr. R. E. Drake- 

 Brockman). West Somaliland : Odhun and Gebidi labba dehd, 

 River Webi, November 2Gth and 27th, 1008 {Dr. R. E. Drake- 

 Brockman). Anglo-Egyptian Sudan : Bahr-El-Ghazal, February, 

 1005 {Lieut-Colonel R. H. Penton, D.S.O. , R.A.M.C). Angola: 

 exact locality unknown, 1873 {J. J. Monteiro). Northern Nigeria: 

 Hadeija, March 8th and 28th, and Katagum, August 10th, 1007 

 {Dr. J. M. Dalziel) ; R. Benue, between Amara and Ibi, 1008 

 {Dr. J. McF. Pollard). Gold Coast: Accra, November 6th, 1007 

 {Dr. W. M. Grahayn, W.A.M.S.). A specimen of T. diUenialus, 

 Macq., was " caught in a European house placed on high ground 

 at the mouth of the Gambia River," during the Expedition of the 

 Liverpool School of Tropical Medicine to Senegambia, 1002-1003.* 



It is stated by Surcouf and Roubaudf that in the region of Lake 

 Chad Tabanus ditceniatus is known to the natives as Ter Ahhiot 

 (white-headed Tabanus). Dr. J. E. S. Old, in an official report on 

 blood-sucking flies met with by him in the Chikala District, Nyasa- 

 land Protectorate, in March, 1006, writes of Tabanus ditceiiiatus : — 

 " Some were seen on the plastering of the outside walls of the huts of 

 Chibwano's village, and biting men underneath Ficus trees." 

 According to Major L. H, R. Pope-Hennessy {in litt., 'March 10th, 

 1005), the Somalis near Kismayu, Jubaland, East Africa Protector- 

 ate, call this species " Baal ad" or " Banl at," but it would appear 

 that the name is applied indiscriminately to any small Tabanid.J 



* Cf. Newstead, Diitttm and Todd. Annait of Tropical ^[rdicin>' and Parasitoloijy. 

 Series T.M.. Vol. I., No. I., p. 44 (February 1, I'JOT), wliere tlio species Ls calle<l 

 Atrjlotus nigromaciUatus, Ric. 



t Bulletin du Mim'um National d'Histoire Naturellc, .\nn6e 1908, No. 5 (Paris, 

 1908). 



J Vide supra, pp. ()3 and 117, and also Austen, "A Monograph of the Tsetse - 

 flies" (1907), p. 307 and note.— Dr. R. E. Drake-Hrocknian writes tliat T. dita-niatus 

 is "well known to the Somalis by the name of ■ Hal ad.' and is considered by them 

 to be dangerous to stock, camels in particular sufTeiing greatly from their onslaughts. 

 Altiiough human beings are frequently attacked by these flies, no ill -effects seem 

 to accrue." 



