45 



The flies were captured in 23 screen wire traps 9| inches high and 

 6 inches in diameter at the base. Pieces of commercial ammonium 

 carbonate were placed in glass dishes in the pan of the trap and a 

 little water was usually added. The result was that 15 specimens 

 of Phorbia sp., 11 of Muscina stabulans, one of Ravinia communis, 

 one of Fannia canicularis, one of Lucilia sericata, two of Ophi/ra 

 leucostoma, three of Stomoxys calcitrans, 106 of Leptocera ferrugitiata 

 and two of Sepsis minuta were caught, while two specimens of 

 R. co7nmunis and one of L. sericata were taken in the control traps. 

 The number of Leptocera ferruginata caught only represents those that 

 actually fell into the liquid, as they were small enough to pass through 

 the meshes of the screen. ^ 



One trap experiment with valerianic acid gave no result with 

 Stomoxys calcitrans, nor would this fly oviposit on cotton wool soaked 

 in the acid, thus differing from the results obtained by Howlett. 



A bibliography of 11 references is appended. 



Corson (J. F.). Entomological and other Specimens collected in the 

 Northern Territories, chiefly in the Districts of Wa and Dorlia. — 



— Rept. Accra Laboratory for the Year 1915, London [n. d.], 

 pp. 30-35. [Received_23rd January 1917.] 



The following specimens collected were identified by Mr. H. F. 

 Carter : — Culicidae : Anopheles costalis, Lw., A, funestus, C4iles, 

 A. pharoensis, Theo., Culex decens, Theo., C. duttoni, Theo., 

 C. invidiosus, Theo., C. tigripes, Gr., C. tigripes var. fuscus, Theo., 

 C. univittatus, Theo., Culiciomyia nebulosa, Theo., Mansonioides uni- 

 formis, Theo., Ochlerotatus furcifer, Edw., 0. hirsiitus, Theo., 

 0. ochraceus, Theo., Stegomyia apicoargentea, Theo., S. fasciata, F., 

 S. sugens, Wied. Tabanidae : Chrysops distinctipennis, Aust., 

 C. longicornis, Macq., Haematopota beringeri, Aust., H. corsoni. 

 Carter, H. decora, Walk., H. gracilis, Aust., H. pinguicornis. Carter, 

 Tabanus biguttatus var. croceus, Surcf., T. ditaeniatus, Macq., 

 T.gratus, Lw., T. simpsoni, Aust., T. taeniola, P. de B., T. taeniola var. 

 variatus, Walk. Muscidae : Glossina lotigipalpis, Wied., G. morsitans, 

 race sub-morsitans, Newst., G. palpalis, R.D., G. tachnioides. West., 

 and Stomoxys calcitrans, L. A few of the cattle examined were found 

 to be infected with Trypanosoma vivax and T. congolense. At Konlvore, 

 where G. morsitans was plentiful, the chief of the village stated that 

 his cattle, which looked healthy, were free from sickness. The 

 Oestrid, Cephenomyia sp., found in the nasal cavity of a hartebeeste, 

 and the tick, Aponomma laeve, found on a snake, are recorded. The 

 larva of a Gastrophilus is conunon in the horses in the district. 



Ingram (A.). Concerning Age, Sex and Race in the Incidence of 

 Human Trypanosomiasis.^ — Rept. Accra Laboratory for the Year 

 1915, London [n. d.], pp. 36-44, 5 tables. [Received 23rd January 

 1917.] 



The conclusions arrived at by various authorities on this point 

 are given and compared with those expressed by Todd and stated 

 as follows : — The proportion of elderly individuals amongst natives 

 of the Congo and Gambia is lower than amongst Europeans. The 



