 This study examined the impact of diet protein and carbohydrate percentages as well as moisture on the immature development, survivorship, and resulting adult longevity and egg production of the black soldier fly. Moisture impacted development and corresponding life history traits more than protein, carbohydrate content. Larvy fed diets at 70% moisture developed faster, grew larger, required less food than those reared on diets at 55% moisture. This article was authored by Jonathan A. Kamak and Jeffrey K. Tomberlin.