IN THE ILORIN PROVINCE OF NORTHERN NIGERIA. 5 



Methods of Collecting. 



My duties necessitated my presence at Ilorin during the greater part of my 

 tour of service, and it was impossible for me to visit every part of the province 

 personally. I therefore engaged a number of natives, and having trained them to 

 recognise and catch tsetse-flies, sent them out into the different districts as 

 collectors. Of the large number of natives who passed through my hands most 

 were found to be of little use, because, although they were able to catch specimens 

 where they were plentiful, they lacked the perseverance, or some peculiar personal 



Fig 2. — Umoru, a Fulani of Yola, one of my native collectors. 



allurement, necessary to procure them in less likely spots. Eventually, however. 

 I was able to select three or four who showed some aptitude and a degree of 

 discrimination, and by them were made most of the collections on which this report 

 is based. I was also fortunate enough to obtain the co-operation of the Admini- 

 strative Officers, who interested themselves in the work and not only furnished 

 me with valuable information but also consented to take collectors with them when 



