127 



Mason (F. E.). Egyptian Fever in Cattle and Buffaloes. — //. Comp. 

 Path & Therap.. London, xxxv, pt. 1, March 1922, pp. 33-39. 



Further observations on Egyptian fever are recorded, as it has been 

 alleged that the country is infected with East Coast fever, which the 

 author has not found in Egyptian cattle, but only in Sudanese cattle 

 arriving in quarantine. 



The course of the former disease and its symptoms are described. 

 It is probable that a high percentage of cattle become infected during 

 the first few months of their lives. The ticks commonly found in 

 association with the disease are Boophilns (Margaropus) annulatiis 

 and Hyalomma aegypfiiim. Since 1915 spraying with freshly prepared 

 arsenical dip and disinfection of sheds or removal to fresh land have 

 been carried out each year. The use of trypanblue or arrhenal has no 

 effect on the parasite. The disease is caused by a Theileria and not a 

 Piroplasma, and it would appear not to be transmissible by blood 

 innoculation. The disease is not limited to Egypt, and a brief account 

 of it in other countries is given. 



Two cases of Egyptian fever in buffalos are recorded. Piroplasmosis 

 of buffalos in Egypt appears to be of little economic importance, but 

 care should be taken that possible carriers are recognised. 



Hearle (E.). Mosquito Control Investigations in British Columbia. — 



Scientific Agric. Gardenvale, Quebec, i, no. 2, February 1921, 

 pp. 68-70, 4 figs. [Received 12th April 1922.] 



The Eraser Valley in British Columbia is periodically subjected to 

 severe infestation of mosquitos. Over 20 species of mosquitos occur, 

 the two important ones being Aedes aldrichi, Dyar, and A. vexans, 

 Meig. Both species breed in the low areas bordering the Fraser River, 

 whenever these are flooded. In the case of A . aldrichi the winter is 

 passed in the egg-stage in the alder-bottom areas bordering the river. 

 The adults are capable of spreading 13 miles from their breeding-places. 

 They are extremely troublesome all through the day in sheltered places. 

 A . vexans breeds in open meadows and prairies near the river which are 

 flooded at high water time. The winter is passed in the egg-stage, and 

 the number of eggs is considerable, the adults usually emerging two 

 weeks after hatching. The adult life is about six weeks. 



It is thought that the problem may be overcome if a determined 

 attempt is made by the residents of infested territory. The reclama- 

 tion of larger breeding areas by dyking and pumping is the first step 

 necessary. An aerial survey is being planned to facilitate the marking 

 of the main breeding areas. 



Dry (F. W.). Annual Report of the Division oJ Entomology, Kabete, 

 for the Year ending 31st March 1920. — Kenya Dept. Agric Ann. 

 Kept., 1919-20, Nairobi, 1921, pp. 71-77. [Received 13th April 

 1922.] 



The species of Glossina recorded are G. fitsca, Wlk., G. palpalis, 

 R.D., G. austeni, Newst., G. brevipalpis, Newst., G. longipennis, 

 Cort., and G. pallid ipes, Aust. The highest elevation from which any 

 species is recorded is 5,200 feet, and as most of the Trans-Nzoia is above 

 this elevation it must be expected to be more or less fly free. Certain 

 cases of trypanosomiasis recorded probably originated outside this 

 area. 



A short account is given of a study of the blood-sucking flies of a 

 district near Kericho [R.A.E., B, x, 16]. 



