Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Flea shopping experience:

1. Compare - without doubt the biggest advantage that the Flea offers shoppers today is the ability to compare thousands of Flea at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Flea? Wrong! If the Flea is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Flea then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Flea? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Flea and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Flea wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Flea then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Flea site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Flea, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Flea, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

{{Taxobox| color = pink| name = Flea| image = Scanning_Electron_Micrograph_of_a_Flea.jpg| image_width = 200px| image_caption = Scanning electron microscope of a flea| domain = Eukaryote| regnum = Animalia]a| classis = Insecta]| infraclassis = Neoptera| ordo = Siphonaptera (but see text)| ordo_authority = [Pierre André Latreille, 1825s| subdivision =[Ceratophyllomorpha
Hystrichopsyllomorpha
Pulicomorpha
Pygiopsyllomorpha
] for any of the small wingless insects of the order (biology) Siphonaptera (some authorities use the name Aphaniptera because it is older, but circumscriptional name need not follow the ICZN rules of priority, so most taxonomists use the more familiar name). Fleas are external parasites, living by hematophagy off the blood of mammals and birds. Genetic and morphological evidence indicates that they are descendants of the Scorpionfly family Boreidae, which are also flightless; accordingly it is possible that they will eventually be reclassified as a suborder within the Mecoptera. In the past, however, it was most commonly supposed that fleas had evolved from the fly (Diptera), based on similarities of the larvae. In any case, all these groups seem to represent a clade of closely related insect lineages, for which the names Mecopteroidea and Antliophora have been proposed.

Some well known flea species include:

Morphology and behavior Fleas are small (1/16 to 1/8-inch (1.5 to 3.3 mm) long), agile, usually dark coloured (e.g. the reddish-brown of the cat flea), wingless insects with tube-like mouthparts adapted to feeding on the blood of their hosts. Their bodies are laterally compressed, (i.e., flattened side to side) permitting easy movement through the hairs (or feathers etc.) on the host's body. Their legs are long, the hind pair well adapted for jumping (vertically up to seven inches (18 cm); horizontally thirteen inches (33 cm) Fleas, HYG-2081-97 William F. Lyon, Ohio State University entomology page. Accessed 28 December 2006) - around 200 times their own body length, making the flea the best jumper out of all animals (in comparison to body size). The flea body is hard, polished, and covered with many hairs and short spines directed backward Fleas - P.G. Koehler and F. M. Oi. Printed July 1993, revised February 2003. Provided by the University of Florida, allowing the flea a smooth passage through the hairs of its host. Its tough body is able to withstand great pressure, likely an adaptation to survive scratching etc. Even hard squeezing between the fingers is normally insufficient to kill the flea; it may be necessary to crush them between the fingernails or roll them between the fingers.

drawing of a flea in MicrographiaFleas lay tiny white oval shaped eggs. Their larvae are small and pale with bristles covering their worm-like body. They are without eyes, and have mouthparts adapted to chewing. While the adult flea's diet consists solely of blood, their larvae feed on various organic matter including the feces of mature fleas. Order Siphonaptera - Fleas - BugGuide.Net Accessed 28 December 2006 In the pupae phase the larvae are enclosed in a silken, debris covered cocoon.

Life cycle and habitat Fleas are holometabolism insects, going through the four Biological life cycle stages of embryo, larva, pupa and imago (adult). The flea life cycle begins when the female lays after feeding. Adult fleas must feed on blood before they can become capable of reproduction. Eggs are laid in batches of up to 20 or so, usually on the host itself, which easily roll onto the ground. As such, areas where the host rests and sleeps become one of the primary habitats of eggs and developing fleas. The eggs take around two days to two weeks to hatch.

of a flea larva.Flea larvae emerge from the eggs to feed on any available organic material such as dead insects, feces and vegetable matter. They are blind and avoid sunlight, keeping to dark places like sand, cracks and crevices, and bedding. Given an adequate supply of food, larvae should pupate within 1-2 weeks. After going through three larval stages they spin a silken cocoon. After another week or two the adult flea is fully developed and ready to emerge from the cocoon. They may however remain resting during this period until they receive a signal that a host is near - vibrations (including sound), heat and carbon dioxide are all stimuli indicating the probable presence of a host. Fleas are known to overwinter in the larval or pupal stages.

Once the flea reaches adulthood its primary goal is to find blood - adult fleas must feed on blood in order to reproduce. Adult fleas only have around a week to find food once they emerge, though they can survive two months to a year between meals. A flea population is unevenly distributed, with 50 percent eggs, 35 percent larvae, 10 percent pupae and 5 percent adults. Their total life cycle can take as little as two weeks, but may be lengthened to many months if conditions are favourable. Female fleas can lay 500 or more eggs over their life, allowing for phenomenal growth rates.

Evolution and classification Fleas are apparently related to scorpionflyDavid Grimaldi and Michael S. Engel (2005). Evolution of the Insects. Cambridge University Press. ISBN 0-521-82149-5., winged insects with good eyesight. The flightless Boreidae with its vestigial structure wings seems to be close to the common ancestor of the 2000 or so currently known varieties of flea, which split off in many directions around 160 million years ago. Their evolution continued to produce adaptations for their specialized parasitic niche, such that they now have no wings and their eyes are covered over. The large number of flea species may be attributed to the wide variety of host species they feed on, which provides so many specific ecological niches to adapt to.

Flea systematics is not entirely fixed. While compared to many other insect groups fleas have been studied and classified fairly thoroughly, details still remain to be learned about the evolutionary relationships among the different flea lineages.

Infraorder Pulicomorpha Infraorder Pygiopsyllomorpha Infraorder Hystrichopsyllomorpha Infraorder Ceratophyllomorpha

Relationship with host Fleas attack a wide variety of warm-blooded vertebrates including dogs, cats, humans, chickens, rabbits, squirrels, rats and mice. Fleas are a nuisance to their hosts, causing an itching sensation which in turn may result in the host attempting to remove the pest by biting, pecking, scratching etc the vicinity of the parasite. Fleas are not simply a source of annoyance, however. Some people and animals suffer allergic reactions to flea saliva resulting in rashes. Flea bites generally result in the formation of a slightly-raised swollen itching spot with a single puncture point at the center. The bites often appear in clusters or lines, and can remain itchy and inflamed for up to several weeks afterwards. Fleas can also lead to hair loss as a result of frequent scratching and biting by the animal, and can cause anemia in extreme cases.

Besides the problems posed by the creature itself, fleas can also act as a vector (biology) for disease. For example, fleas transmitted the bubonic plague between rodents and humans by carrying Yersinia pestis bacteria. Murine typhus (endemic typhus) fever, and in some cases Hymenolepiasis (tapeworm) can also be transmitted by fleas.

Flea treatments For humans

The itching associated with flea bites can be treated with antipruritic, usually antihistaminics or hydrocortisone. Calamine lotion has been shown to lack any effect on itching.

For pets The fleas, their larvae, or their eggs can be controlled with insecticides. Lufenuron and fipronil are popular veterinary preparation that attacks the larval flea's ability to produce chitin. Flea medicines need to be used with care as many, especially the acetylcholinesterase inhibitors, also affect mammals. Popular brands include Bayer Advantage, Advantix, and Frontline.

For the home Combating a flea infestation in the home takes patience as for every flea found on an animal there are many more developing in the home. A spot-on insecticide, such as Advantage, Frontline or Revolution will kill the fleas on the pet and in turn the pet itself will be a roving fleatrap and mop up newly hatched fleas. The environment ought to be treated with a fogger containing an juvenile hormone, such as pyriproxyfen or methoprene to kill eggs and pupae, which are quite resistant against insecticides. Frequent vacuuming is also helpful, but you must immediately dispose of the vacuum bag afterwards.

Even though organophosphate-based insecticides are still sold as flea collars, flea powders and flea shampoos, those are not recommended. Many strains of insects have become resistant against that class of compounds, and they display an unacceptably high level of toxicity against mammals.



Other Lima, Peru.The Moche people of ancient Peru worshipped nature. Benson, Elizabeth, The Mochica: A Culture of Peru. New York, NY: Praeger Press. 1972 They placed emphasis on animals and even depicted fleas in their art. Berrin, Katherine & Larco Museum. The Spirit of Ancient Peru:Treasures from the Larco Museum. New York: Thames and Hudson, 1997.

See also

References

External links

{{Taxobox| color = pink| name = Flea| image = Scanning_Electron_Micrograph_of_a_Flea.jpg| image_width = 200px| image_caption = Scanning electron microscope of a flea| domain = Eukaryote| regnum = Animalia]a| classis = Insecta]| infraclassis = Neoptera| ordo = Siphonaptera (but see text)| ordo_authority = [Pierre André Latreille, 1825s| subdivision =[Ceratophyllomorpha
Hystrichopsyllomorpha
Pulicomorpha
Pygiopsyllomorpha
] for any of the small wingless insects of the order (biology) Siphonaptera (some authorities use the name Aphaniptera because it is older, but circumscriptional name need not follow the ICZN rules of priority, so most taxonomists use the more familiar name). Fleas are external parasites, living by hematophagy off the blood of mammals and birds. Genetic and morphological evidence indicates that they are descendants of the Scorpionfly family Boreidae, which are also flightless; accordingly it is possible that they will eventually be reclassified as a suborder within the Mecoptera. In the past, however, it was most commonly supposed that fleas had evolved from the fly (Diptera), based on similarities of the larvae. In any case, all these groups seem to represent a clade of closely related insect lineages, for which the names Mecopteroidea and Antliophora have been proposed.

Some well known flea species include:

Morphology and behavior Fleas are small (1/16 to 1/8-inch (1.5 to 3.3 mm) long), agile, usually dark coloured (e.g. the reddish-brown of the cat flea), wingless insects with tube-like mouthparts adapted to feeding on the blood of their hosts. Their bodies are laterally compressed, (i.e., flattened side to side) permitting easy movement through the hairs (or feathers etc.) on the host's body. Their legs are long, the hind pair well adapted for jumping (vertically up to seven inches (18 cm); horizontally thirteen inches (33 cm) Fleas, HYG-2081-97 William F. Lyon, Ohio State University entomology page. Accessed 28 December 2006) - around 200 times their own body length, making the flea the best jumper out of all animals (in comparison to body size). The flea body is hard, polished, and covered with many hairs and short spines directed backward Fleas - P.G. Koehler and F. M. Oi. Printed July 1993, revised February 2003. Provided by the University of Florida, allowing the flea a smooth passage through the hairs of its host. Its tough body is able to withstand great pressure, likely an adaptation to survive scratching etc. Even hard squeezing between the fingers is normally insufficient to kill the flea; it may be necessary to crush them between the fingernails or roll them between the fingers.

drawing of a flea in MicrographiaFleas lay tiny white oval shaped eggs. Their larvae are small and pale with bristles covering their worm-like body. They are without eyes, and have mouthparts adapted to chewing. While the adult flea's diet consists solely of blood, their larvae feed on various organic matter including the feces of mature fleas. Order Siphonaptera - Fleas - BugGuide.Net Accessed 28 December 2006 In the pupae phase the larvae are enclosed in a silken, debris covered cocoon.

Life cycle and habitat Fleas are holometabolism insects, going through the four Biological life cycle stages of embryo, larva, pupa and imago (adult). The flea life cycle begins when the female lays after feeding. Adult fleas must feed on blood before they can become capable of reproduction. Eggs are laid in batches of up to 20 or so, usually on the host itself, which easily roll onto the ground. As such, areas where the host rests and sleeps become one of the primary habitats of eggs and developing fleas. The eggs take around two days to two weeks to hatch.

of a flea larva.Flea larvae emerge from the eggs to feed on any available organic material such as dead insects, feces and vegetable matter. They are blind and avoid sunlight, keeping to dark places like sand, cracks and crevices, and bedding. Given an adequate supply of food, larvae should pupate within 1-2 weeks. After going through three larval stages they spin a silken cocoon. After another week or two the adult flea is fully developed and ready to emerge from the cocoon. They may however remain resting during this period until they receive a signal that a host is near - vibrations (including sound), heat and carbon dioxide are all stimuli indicating the probable presence of a host. Fleas are known to overwinter in the larval or pupal stages.

Once the flea reaches adulthood its primary goal is to find blood - adult fleas must feed on blood in order to reproduce. Adult fleas only have around a week to find food once they emerge, though they can survive two months to a year between meals. A flea population is unevenly distributed, with 50 percent eggs, 35 percent larvae, 10 percent pupae and 5 percent adults. Their total life cycle can take as little as two weeks, but may be lengthened to many months if conditions are favourable. Female fleas can lay 500 or more eggs over their life, allowing for phenomenal growth rates.

Evolution and classification Fleas are apparently related to scorpionflyDavid Grimaldi and Michael S. Engel (2005). Evolution of the Insects. Cambridge University Press. ISBN 0-521-82149-5., winged insects with good eyesight. The flightless Boreidae with its vestigial structure wings seems to be close to the common ancestor of the 2000 or so currently known varieties of flea, which split off in many directions around 160 million years ago. Their evolution continued to produce adaptations for their specialized parasitic niche, such that they now have no wings and their eyes are covered over. The large number of flea species may be attributed to the wide variety of host species they feed on, which provides so many specific ecological niches to adapt to.

Flea systematics is not entirely fixed. While compared to many other insect groups fleas have been studied and classified fairly thoroughly, details still remain to be learned about the evolutionary relationships among the different flea lineages.

Infraorder Pulicomorpha Infraorder Pygiopsyllomorpha Infraorder Hystrichopsyllomorpha Infraorder Ceratophyllomorpha

Relationship with host Fleas attack a wide variety of warm-blooded vertebrates including dogs, cats, humans, chickens, rabbits, squirrels, rats and mice. Fleas are a nuisance to their hosts, causing an itching sensation which in turn may result in the host attempting to remove the pest by biting, pecking, scratching etc the vicinity of the parasite. Fleas are not simply a source of annoyance, however. Some people and animals suffer allergic reactions to flea saliva resulting in rashes. Flea bites generally result in the formation of a slightly-raised swollen itching spot with a single puncture point at the center. The bites often appear in clusters or lines, and can remain itchy and inflamed for up to several weeks afterwards. Fleas can also lead to hair loss as a result of frequent scratching and biting by the animal, and can cause anemia in extreme cases.

Besides the problems posed by the creature itself, fleas can also act as a vector (biology) for disease. For example, fleas transmitted the bubonic plague between rodents and humans by carrying Yersinia pestis bacteria. Murine typhus (endemic typhus) fever, and in some cases Hymenolepiasis (tapeworm) can also be transmitted by fleas.

Flea treatments For humans

The itching associated with flea bites can be treated with antipruritic, usually antihistaminics or hydrocortisone. Calamine lotion has been shown to lack any effect on itching.

For pets The fleas, their larvae, or their eggs can be controlled with insecticides. Lufenuron and fipronil are popular veterinary preparation that attacks the larval flea's ability to produce chitin. Flea medicines need to be used with care as many, especially the acetylcholinesterase inhibitors, also affect mammals. Popular brands include Bayer Advantage, Advantix, and Frontline.

For the home Combating a flea infestation in the home takes patience as for every flea found on an animal there are many more developing in the home. A spot-on insecticide, such as Advantage, Frontline or Revolution will kill the fleas on the pet and in turn the pet itself will be a roving fleatrap and mop up newly hatched fleas. The environment ought to be treated with a fogger containing an juvenile hormone, such as pyriproxyfen or methoprene to kill eggs and pupae, which are quite resistant against insecticides. Frequent vacuuming is also helpful, but you must immediately dispose of the vacuum bag afterwards.

Even though organophosphate-based insecticides are still sold as flea collars, flea powders and flea shampoos, those are not recommended. Many strains of insects have become resistant against that class of compounds, and they display an unacceptably high level of toxicity against mammals.



Other Lima, Peru.The Moche people of ancient Peru worshipped nature. Benson, Elizabeth, The Mochica: A Culture of Peru. New York, NY: Praeger Press. 1972 They placed emphasis on animals and even depicted fleas in their art. Berrin, Katherine & Larco Museum. The Spirit of Ancient Peru:Treasures from the Larco Museum. New York: Thames and Hudson, 1997.

See also

References

External links



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Hyperdrug, Home of the Equine Pharmacy, Canine Chemists and Pigeon Pharmacy, supplying wormers pet medicines and flea treatments

 

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