Common Flea

Natural Habitat

Inhabits the fur and bedding of domestic pets (cats, dogs) and humans, as well as carpets and upholstery in homes.

Diet & Feeding

Obligate hematophages (blood-suckers). Adults feed on the blood of mammals and birds; larvae feed on organic debris, including adult flea feces ('flea dirt').

Behavior Patterns

Highly mobile jumping insects with flattened bodies to move through fur. They undergo complete metamorphosis (egg, larva, pupa, adult) and can remain dormant in the pupal stage for months until vibrations signal a host is nearby.

Risks & Benefits

Risks: Can cause severe itching, allergic dermatitis, and transmit diseases such as tapeworms or typhus. Benefits: None to humans; serve as a food source for some environmental organisms like spiders or ants.

Identified on: 4/5/2026