IV CONTENTS. 



Ingram, Dr. A., and Macfie, Dr. J. W. Scott. page. 



Notes on some distinctive points in the Pupae of West African 



mosquitos 73 



The early stages of certain West African Mosquitos 135 



Jack, Rupert W. 



Natural transmission of Trypanosomiasis (T. pecorum group) in the 

 absence of Tsetse-fly 35 



Keilin, Dr. D. 



On the supposed first stage larva of Leplohylemyia coarctata, Fall. . . 121 



MacGregor, Malcolm Evan. 



A summary of our knowledge of Insect Vectors of Disease •. . . 155 



Marshall, Dr. Guy A. K. 



Some Weevils injurious to Cacao plants in the Belgian Congo 112 



A new Weevil pest of Sweet Potatoes in Jamaica 269 



Newstead, Prof. R. 



Observations on Scale-insects (Coccidae). — IV, V 1, 125 



Sampson, Lt.-Col. F. Winn. 



A new Scolytid injurious to dried Sweet Potatoes in Jamaica 295 



Schwetz, Dr. 



The western and northern limits of Glossina morsitans in Northern 



Katanga 165 



Preliminary note on the Tsetse-flies of the Kabalo-Albertville (Lualaba 



Tanganyika) Railway 169 



Simpson, Dr. James J. 



Bionomics of Tsetse and other parasitological notes in the Gold Coast 193 



Tetley, H. 



The structure of the mouth-parts of Pangonia longirostris in relation 

 to the probable feeding-habits of the species 253 



Theobald, Fred, V. 



African Aphididae. — Part III 273 



Turner, Rowland E. 



On a Braconid parasite of Glossina 177 



