Cat Flea


  • Approximately 1/8″ long
  • Laterally flattened bodies
  • Color is brownish black to black, but reddish black when full of blood
  • The flea life cycle is Egg, Larvae, Pupae, Adult
  • Females lay 4-8 eggs after each blood meal, laying some 400-500 during their lifetime
  • Eggs are deposited on or between hairs, or in the nest or bedding material
  • Eggs deposited on the animal either fall or are shaken off and are found in cracks and crevices where pets sleep or frequent
  • Eggs are oval,whitish, and about 1/64″ long
  • Eggs usually hatch in 1-12 days
  • Once hatched larvae require relatively high humidity and 1-2 weeks up to several months to reach the pupal stage
  • Pupal stage typically lasts 4-14 days but can be up to a year under harsh conditions
  • Once in the Pupal stage pre-emerged adult fleas remain in a cocoon where they are protected form adverse conditions including pesticides
  • Pupating fleas do not emerge in an unoccupied home. Emergence is triggered by a potential host entering the room. This is why many people discover fleas upon their return from vacation or other extended absences.
  • CO2, body heat, footstep vibration, and footstep pressure are among the triggers


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