212 DR. JAMES J. SIMPSON. 



It is interesting to note that out of the small number of animals examined no fewer 

 than seven contained blood parasites, and that these animals belonged to five different 

 species. 



T. pecorum is common in cattle and has also been found in horses, while one of my 

 ponies died with an infection of T. vivax. It is rather strange that no specimen of 

 T. congolense was found in the blood of game, as a large number of cattle and horses 

 examined by me were infected with this species, and I myself lost three ponies with 

 this infection. 



Although the blood of a number of hyaenas was examined, it is particularly striking 

 that no Leucocytozoon was found. 



XI. Human Trypanosomiasis. 



During my stay in the Northern Territories only two cases of trypanosomiasis in 

 natives came to my notice. One of these was a cook in the employ of Dr. Burgess 

 at Salaga, and the trypanosome was undoubtedly T. gambiense. On Dr. Burgess' 

 departure from the Colony I lost sight of the native, so cannot definitely state his 

 progress. 



The other was a constable in the Northern Territories' Constabulary in Tamale. 

 He visted Dr. Graham, Provincial M.O. Tamale, with a temperature. Dr. Graham 

 examined his blood and found a trypanosome. He gave him 5 grs. of atoxyl, and 

 from that day onward never succeeded in finding another trypanosome. He wrote 

 to me about the case, and I suggested that it might be a cattle trypanosome, non- 

 pathogenic to man. A slide of the blood was sent to Dr. Macfie at the laboratory, 

 Accra, who identified it as T. vivax. 



XII. Blood-sucking Arthropods other than Glossina. 



In order to demonstrate the distribution of these arthropods, the most satisfactory 

 method is to take certain definite areas and show the species found in each locality. 

 This list must be taken as supplementary to those given in my original Report on the 

 Gold Coast.* 



Tamale (the headquarters of the Northern Territories) : Anopheles costalis, Lw.; 

 A. funestus, Giles, A. mauritianus, Grp., A. rufipes, Gough, Stegomyia fasciata, 

 ¥., S. africana, Theo., S. luteocephala, Newst., Culiciomyia nebulosa, Theo., 

 Mucidus scatophagoides, Theo., Tabanus biguttatus croceus, Sure. 



Between Tamale and Yapi : Tabanus biguttatus croceus, Sure, T. taeniola, 

 P. de B., T. sticticollis, Sure, Cordylobia praegrandis, Aust. 



Yapi or Tamale Port : Anopheles costalis, Lw., A. funestus, Giles, Stegomyia 

 fasciata, F., S. africana, Theo., S. luteocephala, Newst. , Mansonioides unij or mis, 

 Theo., M. africanus, Theo., Culex duttoni, Theo., Culicoides sp., Simulium 

 damnosum, Theo., Chrysops distinctipennis, Aust., Tabanus biguttatus croceus, 

 Sure, T. taeniola, P. de B., T. sticticollis, Sure, T. gratus, Lw., T. africanus, 

 Gray, T. subangustus, Rie, T. ditaeniatus, Mcq., T. albipalpus, Walk., 

 T. simpsoni, Aust. 



♦Bull. Ent. Research, v, pp. 1-36, 



