Epifluorescent images of E. coli invaded by B. bacteriovorus HD100 with mCherry tagged Bd1971 at the times indicated throughout the invasive process during one round of synchronous infection. Fluorescence was acquired with a two second exposure and maximum sensitivity gain but different balance and contrast levels in the fluorescence channel were used to produce these images (see methods) as the fluorescence was fainter at later timepoints but we wished to show whether or not the cellular localization within the Bdellovibrio altered during predation. Fluorescence images and merges with phase contrast images are shown. Scale bars are 2 µm. Images are representative of three independent experiments. 