Total number of hemocytes and hemocyte types (granulocytes, oenocytoids and prohemocytes) in An. gambiae. (a) Total number of hemocytes and abundance of hemocyte types (granulocytes, oenocytoids, or prohemocytes) per mosquito 24 h post-injection with E. coli, M. luteus, or PBS (mock). (b) Total number of hemocytes and abundance of hemocyte types in day 4 non-fed mosquitoes, and mosquitoes (24 h or 19 days) after feeding on a blood meal containing P berghei or non-infected blood meal. (c) Influence of bacterial species (E. coli or M. luteus) on phagocytosis by An. gambiae granulocytes. (d) Influence of bacterial species on the proportion of granulocytes with internalized bacteria that are melanized. (e) Influence of bacterial species on the proportion of melanized oenocytoids. A minimum of 10 mosquitoes were bled per treatment. Results for (a) and (b) are presented as means ± SE. Results for (c-e) are given as means ± SE for phagocytic or melanized cells relative to the total number of cells (100) counted per sample.