Flea Larva
Scientific Name: Ctenocephalides felis (most common) or Ctenocephalides canis
Order & Family: Order: Siphonaptera, Family: Pulicidae
Size: 2 to 5 mm in length

Natural Habitat
Found in dark, protected areas where pets sleep or rest, such as bedding, carpets, floor cracks, and upholstery. They avoid direct light.
Diet & Feeding
They feed on organic debris found in their environment, specifically 'flea dirt' (dried blood excreted by adult fleas), dead skin cells, and other organic matter.
Behavior Patterns
Flea larvae are negatively phototactic (they move away from light). They are active and mobile, using their bristles to move through carpet fibers. They spin a silken cocoon to pupate before emerging as adults.
Risks & Benefits
Risks: They are a sign of an active flea infestation. While larvae don't bite humans or pets, they mature into blood-sucking adults that cause itching, allergic reactions, and can transmit tapeworms and diseases like typhus or plague. They provide no direct benefits to humans or the domestic ecosystem.
Identified on: 3/6/2026