flea

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flea

flea, common name for any of the small, wingless insects of the order Siphonaptera. The adults of both sexes eat only blood and are all external parasites of mammals and birds. Fleas have hard bodies flattened from side to side and piercing and sucking mouthparts. Their legs are powerful and adapted for fast movement and jumping, enabling them to find new hosts as well as to escape quickly the attempts of the hosts to remove them. The adults can survive away from a host for several weeks without eating. Flea eggs are usually laid in dirt or in the nest of the host; the larvae feed on organic material and the feces of adult fleas. Metamorphosis is complete; the larvae spin silken cocoons when ready to pupate. Many species are not specific to a particular host species, and cat and dog fleas, as well as the human flea of the warmer parts of Europe and Asia, attack humans. Certain rat fleas transmit typhus and bubonic plague to humans, and another species transmits tularemia from rabbits. Fleas also transmit several species of tapeworms that sometimes infest humans. The chigoe is a flea. Water fleas and beach fleas are crustaceans and not closely related to the insects. Fleas are classified in the phylum Arthropoda, class Insecta, order Siphonaptera.
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flea

[flē]
(invertebrate zoology)
Any of the wingless insects composing the order Siphonaptera; most are ectoparasites of mammals and birds.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

flea

1. any small wingless parasitic blood-sucking insect of the order Siphonaptera, living on the skin of mammals and birds and noted for its power of leaping
2. any of various invertebrates that resemble fleas, such as the water flea and flea beetle
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Caption: The cat flea is most common flea in the United States.
Patterson, "Effect of methoprene and diflubenzuron on larval development of the cat flea (Siphonaptera: Pulicidae).," Journal of Economic Entomology, vol.
Lappin, "Evaluation of topical application of 10% imidacloprid-1% moxidectin to prevent Bartonella henselae transmission from cat fleas," Journal of the American Veterinary Medical Association, vol.
But cat fleas? All of a sudden, animal rights was put into perspective.
(6) Recently, a new transitional species of rickettsiae, Rickettsia felis transmitted by cat fleas, has been described that shares clinical and phylogenetic characteristics with both the SF and typhus groups.
Influence of temperature and humidity on survival and development of the cat flea, Ctenocephalides felis (Siphonaptera: Pulicidae).
Actually, most dogs have the cat flea, which will feed on both dogs and cats.
There also have been rare instances in which the infection has been directly transmitted from cats to humans via a cat flea bite, rather than a cat scratch.
A female cat flea lays one egg an hour, every hour of her adult life (which is usually about three months).
Most cat flea products state that they are safe for cats eight weeks old and older.
FLOUR MITE Actual size 0.66mm BLUEBOTTLE MAGGOT Actual size 20mm COMMON HOUSEFLY Actual size 10mm CAT FLEA Actual size 2.5mm