DLSTEIBUTION OF GL. MOESlTxVNS. 85 



and 24'' and 28° E. (Wni, Oswell)* ; 1 (^ , same locality as the 

 preceding (Wm. Oswell) [O.] ; 2 cj <J , 2 9?, Lake Mweru 

 (S.AV. of Lake Tanganyika), 3L vii. 1892 (R. Cmwshay) [G.]; 

 1 9 , Henga, circa 3,300 ft. (south-west from northern end of 

 L. Nyasa, between 10° and 11° S. lat.), between July and Dec, 

 1893 (jR. Grawshay) [C] ; 1 9 > Msongozi's, Loangvva Valley, 

 Senga, British Central Africa, 2,300 ft., Sept. 3, 1895 

 (B. Grawshay) ; 2 ^ ^ , 2 9 ? , Kilima Njaro (F. J. Jackson) ; 

 '•^ (? c?5 "E. Africa" (Capt. Spelce) ; S ^ ^ (fragments gummed 

 on card), ? Locality (Dr. Livingstone) [O.]; 10 ^ ^, 10 9 9> 

 Togo, W. Africa (Dr. Schilling) [Royal Zoological Museum, 

 Berlin]; 1 ^, ? Locality and collector [O.] ; 2 ^ (J , ? Locality 

 and collector [V.]. 



Since Glossina morsitans has hitherto undoubtedly been 

 confounded with GL jpallidipes (not to speak of Gl. longipalpis) 

 under the comprehensive term " Tsetse-fly," it is impossible to 

 draw any trustworthy conclusions as to the precise geogi-aphical 

 range of this species from statements in records of African travel 

 and sport. A study of the foregoing list of localities of actual 

 specimens, however, will show that Gl. morsitans certainly occurs 

 — not, of course, continuously, but in " fly-belts " — from Zululand 

 and the south-eastern portion of the Transvaal in the south to 

 Kilima Njaro in the north, while the fact that the species has 

 recently been collected by Dr. Schilling in Togoland on the 

 Slave Coast, shows that it can no longer be regarded as confined 

 to South or even Central Africa, but that its limits are very 

 much wider than has hitherto been supposed. As will be shown 

 below, it is probable that the species which was the subject 

 of Lt.-Col. Bruce's memorable investigations in Zululand was 

 Glossina palUdipes and not GL morsitans, and if this is the case 

 the eastern halves of the areas of distribution of the two species 

 practically coincide. For while Gl. morsitans also occurs in 

 Zululand (two specimens from this region are in the collection 

 of Mr. G. H. Verrall), as has already been seen, the Museunj 

 possesses specimens from Kilima Njaro, which is less than one 

 hundred miles south of Witu Forest, the most northerly locality 

 from which specimens of Gl. pallidipes have at present been 

 received. Until a large amount of material has been systemati- 

 cally collected, any more precise statement as to the relative 

 distribution of GL morsitans and GL pallidipes is impossible. 



* Cf. Trans. Ent. Soc. Lond., New Ser., Vol. II. p. % (1852, 1863)- 

 Ann. Mag. Nat, Hi^t., Sor. 2, Vol. X. (1863). ■ ' ■ ■ • 



