Difference between revisions of "Sarcoptes"

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{{OpenPagesTop}}
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{{review}}
{{Taxobox
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[[Image:Sarcoptes scabei.jpg|thumb|right|150px|''Sarcoptes scabei'' - Wikimedia Commons]]
|name              =''Sarcoptes''
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[[Image:Sarcoptes scabei 2.jpg|thumb|right|150px|''Sarcoptes scabei'' - Wikimedia Commons]]
|phylum            =Arthropoda
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[[Image:Scabies human skin pruritis.jpg|thumb|right|150px|Scabies on human skin resulting in pruritus - Wikimedia Commons]]
|class              =Arachnida
 
|order              =Sarcoptiformes
 
|family            =Sarcoptidae
 
|genus              =Sarcoptes
 
|species            =''S.scabei''
 
}}
 
[[Image:Sarcoptes scabei.jpg|thumb|right|150px|''Sarcoptes scabei'' - Kalumet 2004,Wikimedia Commons]]
 
[[Image:Sarcoptes scabei 2.jpg|thumb|right|150px|''Sarcoptes scabei'' - Kalumet 2004,Wikimedia Commons]]
 
==Introduction==
 
  
Sarcoptes mites are [[Burrowing Mites|burrowing mites]] of dogs and foxes. They Cause [[Sarcoptic Mange]]. The mites prefer hairless skin and so begin on the hocks, elbows and pinnae. The mites are usually spread by direct host to host contact.
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==Recognition==
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*Small, round mite
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*Short legs
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**Project only a short distance from body margin
  
==Identification==
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*Dorsal spines
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**Arranged in rows
  
Sarcoptes mites are small, round mites. They have short legs that project only a short distance from the body margin. They have dorsal spines arranged in rows and a terminal anus. The male mites are about 250μm in length and the females are about 400-430μm in length.
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*Terminal anus
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*Male is about 250μm in length and the female about 400-430μm in length
  
 
==Life cycle==
 
==Life cycle==
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*'''3 week''' life cycle
  
Sarcoptes mites have a '''3 week''' life cycle. The female lays eggs in the epidermis in an '''egg laying pocket'''. The female feeds on liquid oozing from damaged tissue. The eggs then hatch in 1 week and '''6 legged''' larvae are released. They crawl to skin surface and then burrow back into the epidermis into '''moulting pockets'''.
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*Female lays eggs in epidermis in an '''egg laying pocket'''
The larvae moult to become '''8 legged''' nymphs. The nymphs moult twice before becoming adults. Adult males then emerge and look for females to mate.
 
  
==Diagnosis==
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*Female feeds on liquid oozing from damaged tissue
  
Mite infection can be diagnosed with a skin scrape of a 'non-scratched' region. The presence of one Sarcoptes mite is diagnostic.
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*The eggs hatch in 1 week
  
{{Learning
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*'''6 legged''' larvae released which crawl to skin surface
|flashcards = [[Mites_Flashcards|Mites Flashcards]]
 
|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Sarcoptes&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&publishedstart=2000&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all&x=64&y=11 ''Sarcoptes'' publications since 2000]
 
|Vetstream = [https://www.vetstream.com/canis/search?s=mite Mites]
 
}}
 
  
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*The larvae then burrow back into the epidermis into '''moulting pockets'''
  
{{review}}
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*Larvae moult to become '''8 legged''' nymphs
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*Nymphs moult twice before becoming adults
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*Adult males emerge and look for females to mate
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Cause <big>'''[[Sarcoptic Mange]]</big>
  
{{OpenPages}}
 
  
 
[[Category:Burrowing Mites]]
 
[[Category:Burrowing Mites]]
[[Category:Expert_Review]]
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[[Category:To_Do_-_AimeeHicks]]

Revision as of 08:25, 8 July 2010


Sarcoptes scabei - Wikimedia Commons
Sarcoptes scabei - Wikimedia Commons
File:Scabies human skin pruritis.jpg
Scabies on human skin resulting in pruritus - Wikimedia Commons

Recognition

  • Small, round mite
  • Short legs
    • Project only a short distance from body margin
  • Dorsal spines
    • Arranged in rows
  • Terminal anus
  • Male is about 250μm in length and the female about 400-430μm in length

Life cycle

  • 3 week life cycle
  • Female lays eggs in epidermis in an egg laying pocket
  • Female feeds on liquid oozing from damaged tissue
  • The eggs hatch in 1 week
  • 6 legged larvae released which crawl to skin surface
  • The larvae then burrow back into the epidermis into moulting pockets
  • Larvae moult to become 8 legged nymphs
  • Nymphs moult twice before becoming adults
  • Adult males emerge and look for females to mate


Cause Sarcoptic Mange