The prevention of malaria.

  • Ronald Ross
Date:
1910
Catalogue details

Licence: In copyright

Credit: The prevention of malaria. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    All offices and quarters on the Portuguese railway between Komatipoort and Lourenco Marques are now mosquito-proof. Mosquitos.—The following is a list of the mosquitos which are prevalent in this Colony. The larger number of them were collected at Nelspruit in the season of 1904-1905. Anophelina. Nyssorhynchus pretoriensis. Pyretophorus cinereus. Myzorhynchus mauritianus. Do. manhalli. Do. maculipalpis. Do. costalis. CULICINA. Culex bostocki. Culex transvalensis. Culex simpsoni. Culex 7ninutus. Culex theileri. Culex bifoliata. Culex hirsutipalpis. Culex salisbru?tetisis. Culex fatigans. Stegomyia fasciata. Culex tigripes. Stegomyia simpsoni. In addition to these there are a dozen other species of rare genera, which as far as we know as yet are of but little or no economic importance. In the early part of the season the commonest Anopheles mosquito at Nelspruit is P. cinereus, and later in the season N. mauritianus and N. maculipalpis. The former is much more abundant than the latter, especially in March and April. It seems that the abundance of these last two mosquitos is quite parallel with the abundance of fever. While all of these may carry fever, the two latter are, in our opinion, the most important agents of transmission. Stegomyia fasciata is by far the most abundant mosquito in the Low Veldt. It is followed by C. simpsoni, C. hirsutipalpis, and .S. simpsoni in order of abundance. — From Bostock and Simpson [1905]. I have obtained from Mr Howard, the Chief of the Ento- mological Section of the Agricultural Department, Lourenco Marques, the attached report on the Anophelines for the Province of Mozambique. proprietor and editor of the Lourenco Marques Guardian. He was among the first householders in the town to make his house mosquito-proof, and has spared no trouble to extend a knowledge of the subject by constant references to it in his paper.