Difference between revisions of "Wohlfahrtia spp."

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(Created page with '*'''Obligatory''' parasite *Occurs in North America *Parasite of mink and sometimes humans '''Recognition''' *Large 8-14mm long *Pale grey *Black stripes on thorax *Black …')
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*'''Obligatory''' parasite
{{Taxobox
 
|name              = Wohlfahrtia spp.
 
|kingdom            = Animalia
 
|phylum            = [[:Category:Arthropods|Arthropoda]]
 
|class              = [[Insecta]]
 
|sub-class          =
 
|order              = Diptera
 
|super-family      =
 
|family            = Sarcophagidae
 
|sub-family        =
 
|genus              = Wohlfahrtia
 
|species            =
 
}}
 
  
==Introduction==
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*Occurs in North America
''Wohlfahritia spp.'' are from the family ''Sarcophagidae''. Also known as flesh flies; ''Wohlfahritia'' are the largest genus, and are known to cause [[Myiasis|myiasis]].
 
  
==''W. magnifica''==
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*Parasite of mink and sometimes humans
  
Also known as: '''''Flesh Fly — Screw worm
 
[[Image:Wohlfahritia.jpg|150px|thumb|right|''Wohlfahritia'' <br> Alvesgaspar 2008, Wikimedia Commons]]
 
===Hosts===
 
The females will lay eggs on any warm blooded animal.
 
  
===Identification===
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'''Recognition'''
The adults are grey, and have three prominent longitudinal bands. The abdomen has clear black spots.
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*Large 8-14mm long
  
===Life Cycle===
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*Pale grey
''W. magnifica'' are obligate agents of myiasis. The females leave L1 on the host, usually in wounds or body orifices. The larvae then undergo two further moults before leaving the host, and pupating on the ground.
 
  
==''W. nuba''==
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*Black stripes on thorax
  
Also known as: '''''Flesh Fly
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*Black spots on abdomen
  
===Hosts===
 
Camels
 
  
===Identification===
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'''Life cycle'''
The adults are around 10mm, with long elongated bodies. They have longitudinal black stripes, and a dark grey abdomen.
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*Larvae deposited directly onto host
  
===Life Cycle===
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*No egg stage
The females lay eggs primarily in dead stock, but may also infect live mammals, particularly in Northern Africa, causing myiasis. The females lay L1 on the host, then undergo two further moults, before finally pupating on the ground.
 
  
==''W. vigil''==
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*Larvae moult twice on host then fall to ground to pupate
  
Also known as: '''''Grey Flesh Fly
 
  
===Hosts===
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'''Pathogenesis'''
Mink, foxes, and rabbits are primarily affected, but ''W. vigil'' may also occasionally affect cats and dogs.
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*Larvae penetrate intact skin
 
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**Cause boil like swellings[[Category:Parasites]][[Category:Flies]][[Category:Myiasis_Producing_Flies]]
===Identification===
 
The adults are around 10mm long, with elongated bodies, an longitudinal black stripes. It also has a grey and black abdomen.
 
 
 
===Life Cycle===
 
The female leaves active maggots on the host; often in wounds and body orifices. The larvae, however, may penetrate intact skin. The larvae undergo two further transformations, before dropping to the ground to pupate.
 
 
 
==''W. meigeni''==
 
===Hosts===
 
Mainly foxes and minks.
 
 
 
===Identification===
 
The adults are around 10mm in length, and have slender, elongated bodies. They have longitudinal black stripes and a grey and black abdomen.
 
 
 
===Life Cycle===
 
The female lays active maggots on the host, in the orifices or existing areas of myiasis. The larvae then  undergo two further moults, then leave the host, and pupate on the ground.
 
 
 
The larvae will be apparent as a boil like swellings under the skin.
 
 
 
 
 
{{Learning
 
|flashcards = [[Myiasis_Producing_Flies_Flashcards|Myiasis Producing Flies Flashcards]]
 
|literature search = [http://www.cabdirect.org/search.html?q=title:(%22Wohlfahrtia%22) ''Wohlfahrtia'' spp. publications]
 
}}
 
 
 
 
 
{{review}}
 
 
 
{{OpenPages}}
 
 
 
 
 
[[Category:Myiasis_Producing_Flies]]
 
 
 
[[Category:Expert_Review]]
 

Revision as of 20:07, 30 March 2010

  • Obligatory parasite
  • Occurs in North America
  • Parasite of mink and sometimes humans


Recognition

  • Large 8-14mm long
  • Pale grey
  • Black stripes on thorax
  • Black spots on abdomen


Life cycle

  • Larvae deposited directly onto host
  • No egg stage
  • Larvae moult twice on host then fall to ground to pupate


Pathogenesis

  • Larvae penetrate intact skin
    • Cause boil like swellings