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DOG FLEA (Ctenocephalides canis)

Biology

  • Length: 1/8 inch
  • Wingless
  • Reddish brown in color
  • Adults appear flattened from side to side (like most adult fleas).
  • The body parts are segmented and covered with numerous spines and bristles pointed backward. These spines aid in movement through animal hair.
  • They have claws on the tips of their 6 legs to enable them to remain on a host even while the host is scratching.
  • Antennae are short and have 3 segments.
  • Needle-like mouth parts are inserted into a host for blood feeding.
  • Natural rubber, resilin, pads their hind legs, enabling them to jump from 14-16 inches.
  • Complete metamorphosis (egg, larva, pupa, adult)
  • The identifying characteristic that separates the dog flea from the cat flea is the presence of two notches and spines on the hind tibia of the dog flea.

Distribution/Habits

  • Found on dogs and rabbits, rarely on cats
  • Primarily a nuisance to homeowners, they infest pet dogs causing them to scratch and shake vigorously.
  • They often bite humans if the primary host is unavailable.
  • If the host leaves the home, pre-emerged adults reside in cocoons until the host returns.
  • Larval stage eats organic debris left in animal beds.