Report of first expedition to South America, 1913.

  • Harvard School of Tropical Medicine.
Date:
1915
Catalogue details

Licence: In copyright

Credit: Report of first expedition to South America, 1913. 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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    recent work of Bacot and Martin on the seasonal prevalence of Plague in India/ where they believe that the sudden onset of the dry season causes a great decimation of fleas through certain peculiarities of their feeding habits. Outside the city in the savannas and on the slopes of the hills where there were no or very few habitations Stegomyia as might be expected was practically absent, but mosquitoes were abundant and annoying. These which were almost exclusively Mansonia titillans (Walker) occurred sparingly about the edges of the inhabited area, but were typically restricted to the uninhabited areas. Several other species were taken in lesser numbers, as follows: Aedes scapularis Wied. Aedes oswaldi Lutz. Aedes ? iaeniorhynchus Wied. As mentioned above, the absence of Anophelines was very noticeable at that time of the year and contrasts sharply with their great abundance during the rainy season which was reported to us by several competent observers who had lived in Guayaquil for a number of years. A number of insects.of other groups were secured during our stay in Guayaquil and some of the more interesting of these are reported upon in the appendix to this report on page 209. 1 Bacot and Martin: J. Hygiene, Plague Suppl. Ill, 1914, pp. 423-429.
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