Figure 4.

Drosophila simulans larval and pupal distribution on plain food (P-food, open bars) and food labelled with adult chemical cues (A-food) or with adult CHs (CH-food). Drosophila simulans larvae and pupae were tested with A-food (a) or with CH-food (b) processed by D. buzzatii (filled bars) and/or by D. simulans species (dotted bars). For A- and for CH-food, the two species-processed foods were either paired with P-food or simultaneously tested (bottom histograms). For more information, see figure 1. n = 14–20.