Difference between revisions of "Thelazia lacrymalis"

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{{Taxobox
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|name              = Thelazia lacrymalis
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|kingdom            =
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|phylum            =
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|class              = [[Nematodes|Nematoda]]
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|sub-class          =
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|order              =
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|super-family      = [[Spiruroidea]]
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|family            =
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|sub-family        =
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|genus              =
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|species            =
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Also known as: '''''Equine eye worm
  
{| cellpadding="10" cellspacing="0" border="1"
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==Hosts==
| Also known as:
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'''Intermediate hosts''': [[Musca spp.|Muscid flies]]
| '''Equine eye worm
 
|-
 
|}
 
  
===Scientific Classification===
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'''Definitive hosts''': Horses
  
{| cellpadding="10" cellspacing="0" border="1" 
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==Identification==
| Class
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''T. lacrymalis'' is a [[Nematodes|nematode]] of the superfamily [[Spiruroidea]]. The adults are small, at only 1-2cm in length, and are a pale yellow colour.
| Nematoda
 
|-
 
| Superfamily
 
| Spiruroidea
 
|}
 
  
==== General ====
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==Life Cycle==
*Eye worm, ''T. lacrymalis''.
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The female worms are viviparous. L1 is passed by the female worm, and is ingested by the fly, acting as the intermediate host.  The L1 develop into L2, then into L3 inside the ovarian follicles of the fly. The fly infects the definitive host whilst feeding.
*Spiruroid nematode (1-2cm long).
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*Conjunctival sac, inner aspect of third eyelid.
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The prepatent period of ''T. lacrymalis'' is 3-6 weeks.
*Quite common (up to 30% UK horses).
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*Non-pathogenic.
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{{Learning
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|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Thelazia+lacrymalis%22&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=53&y=12&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Thelazia lacrymalis'' publications]
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}}
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{{review}}
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{{OpenPages}}
  
==== Life-Cycle ====
 
*Indirect LC; nuisance flies, [[Musca spp.|''Musca'' species]].
 
 
[[Category:Spiruroidea]]
 
[[Category:Spiruroidea]]
 
[[Category:Horse_Nematodes]]
 
[[Category:Horse_Nematodes]]
[[Category:To_Do_-_Max]]
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[[Category:Expert_Review]]

Latest revision as of 19:57, 19 July 2012


Thelazia lacrymalis
Class Nematoda
Super-family Spiruroidea

Also known as: Equine eye worm

Hosts

Intermediate hosts: Muscid flies

Definitive hosts: Horses

Identification

T. lacrymalis is a nematode of the superfamily Spiruroidea. The adults are small, at only 1-2cm in length, and are a pale yellow colour.

Life Cycle

The female worms are viviparous. L1 is passed by the female worm, and is ingested by the fly, acting as the intermediate host. The L1 develop into L2, then into L3 inside the ovarian follicles of the fly. The fly infects the definitive host whilst feeding.

The prepatent period of T. lacrymalis is 3-6 weeks.


Thelazia lacrymalis Learning Resources
CABICABI logo.jpg
Literature Search
Search for recent publications via CAB Abstract
(CABI log in required)
Thelazia lacrymalis publications





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