Darkling Beetle (Mealworm Beetle) Includes 15-20 Beetles, 1 Dozen Mealworms, and 10 pupa if available Fed a diet of oameal, potatoes, and carrots. RAISE Your Own Mealworms with Black Darkling Beetles! Cannot Guarantee that the pupa won't turn to beetles during shipping. Ship Monday, Tueday, and Wednesday.