301 



ENTOMOLOGICAL RESEARCH IN BRITISH WEST AFRICA. 

 II. NORTHERN NIGERIA. 



By Jas. J. Simpson, M.A., D.Sc. 



{With a Map slwwing the distribution of Glossina and sleephig sickness, two 

 sketch maps and 16 photographs by the author.^ 



(Plates VII.— XVI.) 



Contents. 



Introductory ... ... 



I. Geography of the Protectorate 

 (a.) Position and Extent 

 (i.) Mountain and River Systems 

 (c.) Vegetation 

 II. Climate and Bainfall 



III. Population and Tribes 



IV. Narrative "• 



(a.) The River Niger... 



(6.) Lokoja 



(c.) Off a to Zunaeru ... 



(d.) Zungeru and Environs 



(e.) Zungeru to Yelwa 



(/.) Baro-Kano Railway 



{g.) Kateri 



(/t.) Minna to Izon ... 



(«'.) The River Garara 



Q'.) Derri to Bagana ... 



(/ij.) Bassa Province ... 

 V. Records of Blood-sucking Insects 

 VI. Native names for Insects and D: 



Vn. The Genus ffZosswia 



VIII. Protozoal Diseases in Man and other Animals 

 IX. Remedial Measures and Recommendations 



and other Arthropods from N. Nigeria 

 seases carried by them 



Page. 



301 

 303 

 303 

 305 

 306 

 308 

 314 

 315 

 315 

 318 

 320 

 321 

 324 

 327 

 330 

 333 

 335 

 337 

 339 

 345 

 347 

 347 

 351 

 354 



Introductory. 



The following report on recent entomological investigations in Northern 

 Nigeria is based on a short tour made by the writer, from the 11th of August. 

 1910, to the 21st of January, 1911. But incorporated with my own observations 



