1 INTRODUCTION Satisfying the increasing global protein demand whilst minimizing the detrimental environmental effects of agriculture is a huge societal challenge (Anderson et al., 2020). Insect larval protein production, projected to exceed 1 Mt in Europe by 2025 (IPIFF, 2018), can contribute to achievement of this goal owing to its superior feed to protein conversion ratios and lower greenhouse gas emissions and water use than that of livestock (Van Huis, 2013).