Bug Identifier
Flea Larva
Community identification

Flea Larva

Ctenocephalides felis (most common) or Ctenocephalides canis

Order & Family
Order: Siphonaptera, Family: Pulicidae
Size
2 to 5 mm (approx. 1/8 to 1/4 inch) in length
See this bug in the Encyclopedia

Natural Habitat

Found in dark, protected areas where pets sleep or rest, such as carpets, bedding, cracks in floorboards, or shaded areas outdoors in soil.

Diet & Feeding

Scavengers that feed on organic debris, particularly 'flea dirt' (dried blood excreted by adult fleas), skin flakes, and other small organic particles.

Behavior Patterns

They are negatively phototactic (avoid light) and will burrow deep into carpet fibers or bedding. They spin a sticky, silken cocoon in which they pupate before emerging as adults.

Risks & Benefits

Risks include developing into biting adult fleas that infest pets and humans, causing itching, allergic dermatitis, and potentially transmitting tapeworms or diseases like typhus and plague. No significant ecosystem benefit in a domestic setting.