Does flea larvae bite?

Larvae don't bite. Flea larvae survive on eating digested blood from adult flea feces, dead skin, hair, feathers, and organic debris found in carpet, rugs, fabric on furniture, and bedding material. Adult fleas do bite, because they need a fresh blood meal. Newly hatched ones will die unless they feed within 1 week; older fleas can live 2 months-1year without feeding.