Hemiphilerus illutatus Beetle Larvae(Hemiphilerus illutatus) IS US narive beetles. Unlike most other speceis of beetles that eat fruits and beetle jelly, as adults, these require protein. **This listing is for beetle larvae, NOT adult. A small amount of substrate (food) will be packaged with your larvae, so you can prepare their extra food, OR you can purchase our ready to feed premium beetle substrate from us! Note: Larvae eat flake soil and adults eat pre killed roaches.