Black Soldier Fly

Hermetia illucens

The black soldier fly (Hermetia illucens) is a dark, wasp-like fly whose larvae are widely used to convert food scraps, manure, and other organic material into insect biomass and frass. Adults do not bite people and are short-lived, while the pale larvae are strong feeders that pass through several growth stages before wandering away to pupate. The species is now cosmopolitan in warm regions and is important in composting, animal feed research, and small-scale waste reduction systems.

People rear black soldier flies for poultry, fish, reptiles, composting projects, and commercial protein production. Successful systems manage feedstock depth, moisture, temperature, airflow, and escape routes for prepupae, since wet anaerobic waste can smell and kill larvae. Feed safety matters: larvae raised on questionable waste should not automatically be fed to valuable animals. In regulated settings, producers track substrate sources, drying or processing methods, and nutrient profiles, because a larva grown on brewery grain is not the same product as one grown on mixed refuse.