Expression of both IMPI and lysozyme in G. mellonella is reported to be upregulated by a range of stimuli including fungal and bacterial infection (Vertyporokh and Wojda, 2017), metamorphosis and wounding (Griesch et al., 2000, Altincicek and Vilcinskas, 2006, Vilcinskas, 2019). Here, LYZ is linked to bacterial infectious disease.