Difference between revisions of "Dermatobia hominis"

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[[Image:Human Bot fly.jpg|thumb|right|150px|Human Bot Fly - Captain R. Goodman, United States Air Force]]
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{{OpenPagesTop}}
[[Image:Human Bot fly Larvae.jpg|thumb|right|150px|Human Bot Fly Larvae - Captain R. Goodman, United States Air Force]]
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{{Taxobox
*Also called the human bot fly
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|name              =''Dermatobia hominis
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|kingdom            =
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|phylum            =
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|class              =Secernentea
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|sub-class          =
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|order              =Diptera
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|super-family      =
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|family            =[[Oestridae]]
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|sub-family        =
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|genus              =Dermatobia
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|species            ='''''D. hominis'''''
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}}
  
*Larvae are important parasites of both humans and animals
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[[Image:Human Bot fly.jpg|thumb|right|150px|''Human Bot Fly'' <br> J. Eibl 2007, WikiMedia Commons ]]
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[[Image:Human Bot fly Larvae.jpg|thumb|right|150px|''Human Bot Fly Larvae'' - Captain R. Goodman 2007, WikiMedia Commons]]
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Also known as: '''''Human bot fly — Torsalo — Berne — Ura
  
*Specifically found in South America
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==Hosts==
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Humans, many birds and most domestic and wild animals.
  
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==Identification==
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The mature larvae may grow up to 25mm in length.  ''D. hominis'' are similar to [[Calliphoridae|''Calliphora'']] in appearance, and are of the family [[Oestridae]]. They have a blue-black abdomen, and have yellow-orange head and legs.
  
'''Recognition'''
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Larvae are distinctive as they taper towards the posterior end.
*Adult can grow up to 25mm in length
 
  
*Similar to [[Calliphoridae|''Calliphora'']] in appearance
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==Life cycle==
**Blue-black
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The adults do not feed, and draw food from the larvae stage, which accumulate stores throughout their development. The female then catches an insect, most commonly the [[Culicidae|mosquito]], and lays a batch of eggs on it.
**Yellow-orange head and legs
 
  
*Larvae are distinctive as they taper towards the posterior end
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The insect lands on a host, and the L1 larvae then hatch on the host, and quickly penetrate the skin.  The larvae undergo a transformation to L2, and then subsequently to L3.  The larvae fully mature, and then move to the ground to pupate. They then emerge later as adults.
  
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It is a '''4 month''' life cycle.
  
'''Life cycle'''
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{{Learning
*Eggs laid on blood sucking flies such as mosquitoes
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|flashcards = [[Myiasis_Producing_Flies_Flashcards|Myiasis Producing Flies Flashcards]]
**These hatch when the mosquito next lands on a warm blooded animal
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|literature search =[http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Dermatobia+hominis%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=71&y=9&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Dermatobia hominis'' publications]
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}}
  
*Larvae penetrate skin causing painful swellings
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==References==
  
*Larvae emerge after 35-42 days and fall to ground to pupate
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Taylor, M.A, Coop, R.L., Wall,R.L. (2007) '''Veterinary Parasitology''' ''Blackwell Publishing''
  
*'''4 month''' life cycle
 
  
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{{review}}
  
'''Pathogenesis'''
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{{OpenPages}}
*In humans, the larvae are most often found in swellings on the head and limbs
 
  
*Larvae cause painful swellings and distress to cattle
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[[Category:Myiasis_Producing_Flies]]
 
 
*Larvae cause production losses
 
 
 
*Wounds caused by exiting larvae can increase the prevalence of attack by other myiasis flies
 
  
[[Category:Myiasis_Producing_Flies]]
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[[Category:Expert_Review]]
[[Category:To_Do_-_Parasites]]
 

Latest revision as of 18:38, 5 July 2012


Dermatobia hominis
Class Secernentea
Order Diptera
Family Oestridae
Genus Dermatobia
Species D. hominis
Human Bot Fly
J. Eibl 2007, WikiMedia Commons
Human Bot Fly Larvae - Captain R. Goodman 2007, WikiMedia Commons

Also known as: Human bot fly — Torsalo — Berne — Ura

Hosts

Humans, many birds and most domestic and wild animals.

Identification

The mature larvae may grow up to 25mm in length. D. hominis are similar to Calliphora in appearance, and are of the family Oestridae. They have a blue-black abdomen, and have yellow-orange head and legs.

Larvae are distinctive as they taper towards the posterior end.

Life cycle

The adults do not feed, and draw food from the larvae stage, which accumulate stores throughout their development. The female then catches an insect, most commonly the mosquito, and lays a batch of eggs on it.

The insect lands on a host, and the L1 larvae then hatch on the host, and quickly penetrate the skin. The larvae undergo a transformation to L2, and then subsequently to L3. The larvae fully mature, and then move to the ground to pupate. They then emerge later as adults.

It is a 4 month life cycle.


Dermatobia hominis Learning Resources
FlashcardsFlashcards logo.png
Flashcards
Test your knowledge using flashcard type questions
Myiasis Producing Flies Flashcards
CABICABI logo.jpg
Literature Search
Search for recent publications via CAB Abstract
(CABI log in required)
Dermatobia hominis publications


References

Taylor, M.A, Coop, R.L., Wall,R.L. (2007) Veterinary Parasitology Blackwell Publishing




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