Fig. 3

Numbers of Phlebotomus orientalis sand flies captured on coloured sticky traps, during different lunar phases. Each trap night is the total number of male and female sand flies captured on 10 A4 size papers or transparent plastic sheets, placed vertically on the ground, between 18:00–06:00 h at different microhabitats in Belo village, Rahad region, eastern Sudan. Boxplot boxes represent the interquartile range, the horizontal lines represent the medians and the upper and lower whiskers represent the maximum and minimum values. a Quarter lunar-half lunar nights (April 2016). b Full-lunar nights (March–June 2017). c Full dark nights (April 2017). Note the different scales used for Y-axes. Different letters above bars indicate significantly different values (Kruskal-Wallis test, followed by pairwise analysis, adjusted by Bonferroni correction for multiple comparisons)