286 GLOSSINA LONGIPENNIS [CH. 



the human trypanosomiasis of Rhodesia, Nyasaland and certain 

 parts of German East Africa (Rovuma River). Moreover 

 Fischer's experiments on the Victoria Lake, clearly shew that 

 under experimental conditions T. gambiense may be transmitted 

 by this species of tsetse, in which it undergoes a cyclical develop- 

 ment. 



In addition G. morsitans has been proved to be the inter- 

 mediate host of the following infections : T. brucei, T. pecaudi, 

 T. cazalboui, T. dimorphon, T. pecorum, T. congolense and 

 T. simicv, each of which is described below, together with the 

 manner in which the fly conveys the infection. 



REFERENCES. 



Austen, E. (1903). Monograph of the Tsetse-Flies. 



(1911). Handbook of the Tsetse-Flies, 



Fischer, W. (1913). Arch. f. Schiffs u. Trop. Hyg. vol. xvn. p. 73. 

 Hall (1910). Bull. Ent. Research, vol. T. p. 183. 

 Jack, R. (1912). Ibid. vol. n. p. 357. 

 Kinghorn, A. (1912). Ibid. vol. n. p. 291. 

 Lloyd, Li. (1912). Ibid. vol. in. p. 233. 

 Montgomery and Kinghorn (1909). Ann. Trop. Med. and Parasit. 



vol. in. p. 322. 



Neave, S. A. (1912). Bull. Ent. Research, vol. in. p. 275. 

 Newstead, R. (1910). Ann. Trop. Med. and Parasit. vol. iv. p. 369. 

 Roubaud, E. (1911). Compt. Rend. Acad. Sci., No. 14, p. 637. 

 Sharpe, Sir A. (1910). Bull. Ent. Research, vol. I. p. 173. 

 Simpson, J.J. (1912). Ibid. vol. n. p. 301, and vol. in. p. 137. 

 Selous, F. C. (1910). African Nature Notes and Reminiscences, London. 

 Shircore, J. O. (1914). Bull. Ent. Research, vol. v. p. 87. 



Glossina longipennis Corti, 1895. 



Description. This species resembles G. brevipalpis in its size 

 and general appearance, but may easily be distinguished by the 

 presence of four sharply denned, dark brown, more or less 

 elongate spots on the thorax arranged in a parallelogram, two 

 in front and two behind the transverse suture. The proboscis 

 bulb has a sharply denned brown, or dark brown, tip. The 

 length of the male varies from 10*2 to ir6 mm., and of the 

 female from 11-9 to 13-0 mm. 



