Both PPO1 and PPO2 contribute to melanization of wasp capsule.

<p>Top panels: representative photos showing infected eggs of <i>A. tabida</i> parasitoid wasp were not melanized in the <i>PPO1</i>^Δ, <i>PPO2</i>^Δ mutant larvae. Note that <i>A. tabida</i> larvae escape the capsule and develop better in the double-mutant compared to single mutants and wild-type (the position of the larva is indicated with dashed dots). Lower panels: Light micrographs showing melanin deposited on the surface of the eggs of <i>A. tabida</i> removed from the hemocoel of wild-type and <i>PPO</i> mutant larvae at 6 days post-infection. Phalloidin staining reveals the presence of lamellocytes around the egg of wild-type and <i>PPO</i> mutant larvae. Bars = 300 µm.