LGALS4 and infection: (C, D) Wasp-infection response in (C) control (dome-MESO-Gal4, UAS-GFP/+) showing lamellocytes in lymph gland, (D) Expressing simaRNAi (dome-MESO-Gal4, UAS-GFP; UAS-simaRNAi) in progenitor cells causes reduction in lamellocyte numbers in lymph gland.