Bug Identifier
Cat Flea
Community identification

Cat Flea

Ctenocephalides felis

Order & Family
Siphonaptera: Pulicidae
Size
1.5 to 3.3 mm in length
See this bug in the Encyclopedia

Natural Habitat

Worldwide distribution, primarily found on host animals such as cats, dogs, and wildlife, as well as in their bedding and carpeted areas.

Diet & Feeding

Obligate hematophages; adults feed exclusively on the blood of mammals, while larvae feed on organic debris and 'flea dirt' (adult fecal matter containing dried blood).

Behavior Patterns

Wingless and vertically flattened for moving through fur; powerful hind legs for jumping; undergo complete metamorphosis (egg, larva, pupa, adult) often triggered by host presence.

Risks & Benefits

Significant veterinary and medical pest; can cause flea allergy dermatitis, transmit tapeworms, and may carry pathogens like Rickettsia felis or Bartonella henselae (cat scratch fever).