Fig. 4

Distribution of members of the An. gambiae s.l. species complex (excluding An. arabiensis) in the study area during 2010 (a) and 2011 (b) transmission seasons. Pie charts show percentage An. gambiae s.l. species composition (excluding An. arabiensis) at CDC light trap sampling sites (excluding sampling sites with less than 10 mosquitoes caught in total across each transmission season)