106 



at least as far as the Gambia. The possibility that Tahanus 

 variatus, which is represented in the Museum Collection by forty- 

 three females, is in reality a form of Tahanus twniola, Pal. de Beauv., 

 has aheady been alluded to in the notes on that species.* The 

 locahties, etc., of the Museum specimens are as follows. — "Interior 

 of South Africa," before 1843 (presented by the Earl of Derby). 

 Orange River Colony : Bloemfontein, 1898 ( — Wihnan). Nyasa- 

 land Protectorate : Blantyre District, May, 1905, and Zomba, 

 April, 1906 {Dr. J. E. S. Old) ; Upper Shire River, January 14th and 

 20th, and Nkata Bay, Lake Nyasa, April 15th, 1906 {E. L. Rhoades). 

 German East Africa : precise locality unknown {collected on Captain 

 Speke^s Expedition to the Sources of the Nile — presented by Lord 

 John Russell, 1864). Uganda : Ankole, May 9th, Buddu and 

 Bulamwezi, 1903 {Colonel Sir David Bruce, C.B., R.A.M.C., F.R.S.) ; 

 Junda, Buruh, " in banana plantation near R. Seziwa," and 

 Buruh, " in patch of forest on Lukoge River, haK-way between 

 Junda and Kisihza," 1903 {S. C. Tomkins) ; Kisembara, February 

 10th {Dr. Cuthhert Christy) ; Wadelai, November, 1904 {Captain 

 E. D. W. Greig, I. M.S.) ; Albert Lake District, 1905 {Dr. G. H. 

 Pooley) ; Northern Usoga, 1906 (received from Dr. A. D. P. 

 Hodges). Abyssinia : Dembratcha, Godjam, April — May, 1902 

 {E. Degen). Angola : Bilie and Benguella, 1904 {Dr. F. Creighton 

 Wellman). Northern Nigeria : Loko, north bank of Benue River, 

 March, 1907 {Dr. B. McGahey, W.A.M.S.). Gambia, 1906 {Dr. E, 

 Hopkinson, D.8.O.). 



This species also occurs on the islands in the Gulf of Guinea. 

 According to R. Greeff,t " T. serratus, Lw." {i.e. T. variatus, Walk.), 

 is very widely distributed upon St. Thomas I., but rare on Rolas : 

 it is said to attack human beings, especially natives, with peculiar 

 pertinacity. 



It may be noted that Tahanus variatus. Walk., perhaps ^ T. 

 Sagittarius, Macq., but that without making an examination of 

 Macquart's type a definite decision as to this is impossible. 



* Sea above, p. 103. 



■]• Of. R. Greeff, Sitzgsber. der Gesellsch. zur. Bej. der ges. Naturivissensch. zu 

 Marburg, 1884, p. 78. 



