Other Free Encyclopedias » Animal Life Resource » Insects and Spiders » Fleas: Siphonaptera - Physical Characteristics, Habitat, Diet, Behavior And Reproduction, Fleas And People, Chigoe (tunga Penetrans): Species Accounts - GEOGRAPHIC RANGE, CONSERVATION STATUS

Fleas: Siphonaptera - Behavior And Reproduction

species host legs body

The survival of every flea species depends on its ability to find a suitable host. Some species remain in the pupal stage for long periods of time to survive cold weather or to wait until a host comes by. The vibrations of an approaching host often trigger adults to emerge from their pupae (PYU-pee). Although fleas cannot see very well, they do respond to moving shadows by jumping. They are also attracted to the body heat and carbon dioxide, a respiratory gas exhaled by potential hosts. Cave-dwelling species instinctively crawl upward on the walls of their homes to find bats roosting on the ceiling.

Males deposit sperm directly into the reproductive organs of the females. The mating behavior of fleas differs from species to species. In many fleas the male grabs the sides of the female's abdomen with suckerlike structures on the inner surface of his antennae. He may also grasp her hind legs with his. With special claspers at the tip of his abdomen he locks his body to the tip of the female's abdomen.

The reproductive cycles of fleas are usually timed to match the reproductive cycles of their mammal hosts or the nesting and migratory habits of bird hosts. This way, hatching flea larvae will have plenty of young animals available to provide them with food.


A flea can jump one hundred times its body height. That is like a human being jumping 600 feet (182.8 meters) straight up. Instead of muscles, fleas rely mostly on tiny, springlike pads at the bases of their back legs. Made of a rubberlike protein called resilin (REH-zih-lihn), the pads are squeezed as the back legs are pulled up close to the body. When the legs are suddenly extended, energy stored from the squeezing is released, propelling the flea into the air.

The life cycle of fleas includes four very distinct stages: egg, larva, pupa, and adult. Some species lay eggs on the host or in the host's burrow or nest. Others deposit their eggs outdoors in soil rich with decaying plants, in carpets, or in animal beds. The larvae usually molt three times before reaching the pupal stage. Depending on species, temperature, and humidity, flea larvae may take a few weeks to several months to reach adulthood. Adults may live a few weeks to three years.

Fleas: Siphonaptera - Fleas And People [next] [back] Fleas: Siphonaptera - Diet

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or

Vote down Vote up

about 1 year ago

Quickbooks Support Number @ http://www.quickbooks.intuit-techsupport.com/
Quickbooks Support Phone Number @ http://www.quickbooks.support-phonenumber.com/
Quicken Support Phone Number @ http://www.quicken.support-phonenumber.com/
Quicken Support Number @ http://www.quicken.intuit-techsupport.com/
Sage Support Phone Number @ http://www.sage.support-phonenumber.com/

Vote down Vote up

about 2 years ago

Thanks for all your information, Website is very nice and informative content.
Packers and Movers in Noida @
Packers and Movers in Thane @
Packers and Movers in Navi Mumbai @
Packers and Movers in Ghaziabad @
Packers and Movers in Faridabad @

Vote down Vote up

about 2 years ago

This article is really fantastic and thanks for sharing the valuable post.
Packers and Movers in Bangalore @
Packers and Movers in Pune @
Packers and Movers in Delhi @
Packers and Movers in Gurgaon @

Vote down Vote up

about 2 years ago

Thanks for post this helpful post - Please visit for More information about -
Packers and Movers in Hyderabad @
Packers and Movers in Mumbai @
Packers and Movers in Chennai @