Flea

Scientific Name: Ctenocephalides felis (Cat flea) or Ctenocephalides canis (Dog flea)

Order & Family: Order: Siphonaptera, Family: Pulicidae

Size: 1.5 to 3.3 mm in length

Flea

Natural Habitat

Typically found on domestic pets, in their bedding, carpets, and cracks in flooring within households.

Diet & Feeding

Obligate parasites; adults feed specifically on the blood of mammals or birds.

Behavior Patterns

Fleas are wingless but have powerful hind legs for jumping long distances. They exhibit a complete metamorphosis (egg, larva, pupa, adult) and can remain dormant in the cocoon stage for months until vibrations signal a nearby host.

Risks & Benefits

Risks include painful, itchy bites, allergic dermatitis, and the transmission of diseases (such as typhus or plague) or tapeworms. There are no ecological benefits to humans.

Identified on: 3/15/2026