14 Afinals Entomological Society of America [Vol. IX, 



Reference should also be made to the work in Egypt of 

 Mr. A. Andres, one of the inventors of the Andres-Maire bait 

 traps for moths, to which reference is made in discussing the 

 control of insects in India. 



Sudan. The entomological work for this country is carried 

 on by Mr. H. H. King, who is Entomologist to the Gordon 

 Memorial College at Khartoum, the seat of Government. 

 Mr. King's work has been largely confined to the study of the 

 blood-sucking insects which are naturally of paramount impor- 

 tance in that region and his investigations on mosquitoes, and 

 particularly on Tabanidae are furnishing valuable results. 



In passing attention should be called to regulations governing 

 the examination of persons entering the Sudan from Uganda for 

 sleeping sickness. Such persons must proceed to Mongalla 

 for examination by the Medical Officer there. There are also 

 restrictions on trade with Uganda; it may only be carried on b}^ 

 licensed persons. 



Locust outbreaks constitute a serious trouble from time to 

 time in the Sudan, S. perigrina being the chief species and the 

 use of poisoned bait, poisoned with sodium arsenite has been 

 employed with success. 



British West Africa. The British territories consist of the 

 colonies of Gambia, Sierra Leone, the Gold Coast, Lagos, and 

 Northern and Southern Nigeria. In these rich tropical regions 

 the agricultural products are very varied, including not only 

 such native products as rubber, palm oil, cacao and various 

 native nuts, etc., but cultivated crops such as cotton, the 

 development of which industry is progressing, rice, coffee, and 

 corn (maize). The greatest obstacle to agricultural develop- 

 ment under European direction has been the widespread 

 occurrence of malaria, which for many years rendered permanent 

 residence impossible to Europeans. To a lesser degree other 

 tropical diseases contributed to the difficulties of existence 

 and agricultural expansion. Fortunately, it has been possible 

 in recent years by the adoption of the necessary anti-malarial 

 measures to remove to an encouraging degree so serious an 

 obstacle, with consequent impetus to the development of those 

 rich territories. 



The development of entomological work, in so far as it 

 relates to the study and control of insect pests affecting the 



