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. 2017 Mar 21;7:250. doi: 10.1038/s41598-017-00328-z

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© The Author(s) 2017

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Density variations for each Diptera group along time in Kessipoughou (a) and Djibilong (b) caves. Histograms (in grey) show the number of individuals for each Diptera group (mosquitoes, sand flies and biting midges) collected each month from May 2012 to April 2013. The monthly rainfall estimates (in mm, broken line) were from the United States Department of Commerce, National Weather Service/Climate Prediction Center (http://www.cpc.ncep.noaa.gov/products/fews/africa). *Month without sampling.