Why Is My Mealworm White?

Mealworms must molt in order to grow. The skin of the mealworm splits down the back and the mealworm slides out. When this happens, the mealworm is white. This is a sure sign that the mealworm has molted recently.

How do you know if mealworms are dead?

Mealworms turn black when dead. In order to make sure they are healthy, check frequently. Handle them with care, and hold them over the container so you won't drop them on the floor.

What color should mealworms be?

Description of mealworms

The larvae are elongate and cylindrical ("worm-like"), hard-bodied and yellow to golden brown in color. The mealworm adults are nocturnal, black, hardshelled beetles about one inch long.