Figure 7.

Mean (±s.e.) number of An. gambiae mosquitoes captured outside or inside experimental houses per night, depending on house type (Experiment 3). There were five house typologies: a standard village style house with closed eaves but with no EaveTubes or screening; houses fitted with EaveTubes alone and no screening; houses fitted with no EaveTubes (closed eaves) and screening alone; houses fitted with screening + EaveTubes; or houses fitted with screening but with the EaveTubes inserts removed so that the eaves were open. Householder behaviour was managed to reflect typical behaviour in which doors and windows were open for part of the evening and morning (see Methods and figure 3). Furthermore, the window screening was deliberately damaged (four 4 × 4 cm holes added per window) and the doors modified to create a 1 cm gap above and below the door to make the house condition more representative of a typical village house. Mosquitoes were collected by HLC from 18.00 to 8.00. The means represent 40 nights of capture with individual treatments replicated 16 times.