What do cat flea larvae eat?

Cat flea larvae primarily feed on organic debris found in the environment, with a significant portion consisting of the dried blood excreted by adult fleas. This excrement, often referred to as 'flea dirt,' is composed of small, dark specks that resemble grains of pepper. The larvae are adapted to consume this resource, as it provides them with the necessary nutrients to grow and develop into adult fleas.

While it is true that flea larvae may encounter other organic matter in their environment, such as decaying organic matter or fur and feathers, their specific adaptation for utilizing the dried blood of adult fleas as a food source is a key aspect of their survival and development. This dietary preference highlights the relationship between the lifecycle stages of fleas and their ecology, ensuring the continuity of the flea population as larvae progress into adults.